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	<title>Zbierka úloh z pravdepodobnosti</title>
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		<title>Zbierka úloh z pravdepodobnosti</title>
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		<item>
		<title>Úloha 1</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-1/</link>
		<comments>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-1/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 10:00:07 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

		<guid isPermaLink="false">http://pravdepodobnost.wordpress.com/?p=10</guid>
		<description><![CDATA[Nech je neprázdna množina a nech . Potom je -algebra vtedy a len vtedy, keď platí 1. , 2. Ak , tak , 3. Ak , tak . Dokážte.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=10&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%5COmega&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;Omega' title='&#92;Omega' class='latex' /> je neprázdna množina a nech <img src='http://s0.wp.com/latex.php?latex=%5Cmathcal%7BS%7D+%5Csubseteq+2%5E%7B%5COmega%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;mathcal{S} &#92;subseteq 2^{&#92;Omega}' title='&#92;mathcal{S} &#92;subseteq 2^{&#92;Omega}' class='latex' />. Potom <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C%5Cmathcal%7BS%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega,&#92;mathcal{S})' title='(&#92;Omega,&#92;mathcal{S})' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra vtedy a len vtedy, keď platí 1. <img src='http://s0.wp.com/latex.php?latex=%5COmega+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;Omega &#92;in &#92;mathcal{S}' title='&#92;Omega &#92;in &#92;mathcal{S}' class='latex' />, 2. Ak <img src='http://s0.wp.com/latex.php?latex=A+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A &#92;in &#92;mathcal{S}' title='A &#92;in &#92;mathcal{S}' class='latex' />, tak <img src='http://s0.wp.com/latex.php?latex=%5COmega+%5Csetminus+A+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;Omega &#92;setminus A &#92;in &#92;mathcal{S}' title='&#92;Omega &#92;setminus A &#92;in &#92;mathcal{S}' class='latex' />, 3. Ak <img src='http://s0.wp.com/latex.php?latex=A_1%2CA_2%2C...+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1,A_2,... &#92;in &#92;mathcal{S}' title='A_1,A_2,... &#92;in &#92;mathcal{S}' class='latex' />, tak <img src='http://s0.wp.com/latex.php?latex=%5Ccap_%7Bi%3D1%7D%5E%5Cinfty+A_i+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;cap_{i=1}^&#92;infty A_i &#92;in &#92;mathcal{S}' title='&#92;cap_{i=1}^&#92;infty A_i &#92;in &#92;mathcal{S}' class='latex' />. Dokážte.</p>
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			<media:title type="html">Radoslav</media:title>
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		<item>
		<title>Úloha 2</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/priklad-2/</link>
		<comments>http://pravdepodobnost.wordpress.com/2009/09/15/priklad-2/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 09:50:13 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

		<guid isPermaLink="false">http://pravdepodobnost.wordpress.com/?p=14</guid>
		<description><![CDATA[Nech je -algebra a nech . Z definície -algebry dokážte, že a pomocou úlohy 1 dokážte, že aj .<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=14&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C%5Cmathcal%7BS%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega,&#92;mathcal{S})' title='(&#92;Omega,&#92;mathcal{S})' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra a nech <img src='http://s0.wp.com/latex.php?latex=A_1%2CA_2...+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1,A_2... &#92;in &#92;mathcal{S}' title='A_1,A_2... &#92;in &#92;mathcal{S}' class='latex' />. Z definície <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebry dokážte, že <img src='http://s0.wp.com/latex.php?latex=%5Ccup_%7Bi%3D1%7D%5En+A_i+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;cup_{i=1}^n A_i &#92;in &#92;mathcal{S}' title='&#92;cup_{i=1}^n A_i &#92;in &#92;mathcal{S}' class='latex' /> a pomocou úlohy 1 dokážte, že aj <img src='http://s0.wp.com/latex.php?latex=%5Ccap_%7Bi%3D1%7D%5En+A_i+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;cap_{i=1}^n A_i &#92;in &#92;mathcal{S}' title='&#92;cap_{i=1}^n A_i &#92;in &#92;mathcal{S}' class='latex' />.</p>
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			<media:title type="html">Radoslav</media:title>
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	</item>
		<item>
		<title>Úloha 3</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-3/</link>
		<comments>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-3/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 09:40:52 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

		<guid isPermaLink="false">http://pravdepodobnost.wordpress.com/?p=23</guid>
		<description><![CDATA[Nech je -algebra a . Dokážte, že udalosti , , aj patria do . (Operáciu definujeme nasledovne: .) Neformálne zdôvodnite, prečo akákoľvek &#8220;spočítateľná&#8221; množinová operácia medzi udalosťami a je opäť udalosť, čiže prvok systému .<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=23&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C%5Cmathcal%7BS%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega,&#92;mathcal{S})' title='(&#92;Omega,&#92;mathcal{S})' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra a <img src='http://s0.wp.com/latex.php?latex=A_1%2CA_2+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1,A_2 &#92;in &#92;mathcal{S}' title='A_1,A_2 &#92;in &#92;mathcal{S}' class='latex' />. Dokážte, že udalosti <img src='http://s0.wp.com/latex.php?latex=A_1+%5Csetminus+A_2&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1 &#92;setminus A_2' title='A_1 &#92;setminus A_2' class='latex' />, <img src='http://s0.wp.com/latex.php?latex=A_1+%5CDelta+A_2&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1 &#92;Delta A_2' title='A_1 &#92;Delta A_2' class='latex' />, aj <img src='http://s0.wp.com/latex.php?latex=A_1+%5Cuparrow+A_2&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1 &#92;uparrow A_2' title='A_1 &#92;uparrow A_2' class='latex' /> patria do <img src='http://s0.wp.com/latex.php?latex=%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;mathcal{S}' title='&#92;mathcal{S}' class='latex' />. (Operáciu <img src='http://s0.wp.com/latex.php?latex=%5Cuparrow&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;uparrow' title='&#92;uparrow' class='latex' /> definujeme nasledovne: <img src='http://s0.wp.com/latex.php?latex=A_1+%5Cuparrow+A_2+%3D+%5C%7B+%5Comega+%5Cin+%5COmega%3A+%5Comega+%5Cnotin+A_1+%5Cvee+%5Comega+%5Cnotin+A_2%5C%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1 &#92;uparrow A_2 = &#92;{ &#92;omega &#92;in &#92;Omega: &#92;omega &#92;notin A_1 &#92;vee &#92;omega &#92;notin A_2&#92;}' title='A_1 &#92;uparrow A_2 = &#92;{ &#92;omega &#92;in &#92;Omega: &#92;omega &#92;notin A_1 &#92;vee &#92;omega &#92;notin A_2&#92;}' class='latex' />.) Neformálne zdôvodnite, prečo akákoľvek &#8220;spočítateľná&#8221; množinová operácia medzi udalosťami <img src='http://s0.wp.com/latex.php?latex=A_1&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1' title='A_1' class='latex' /> a <img src='http://s0.wp.com/latex.php?latex=A_2&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_2' title='A_2' class='latex' /> je opäť udalosť, čiže prvok systému <img src='http://s0.wp.com/latex.php?latex=%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;mathcal{S}' title='&#92;mathcal{S}' class='latex' />.</p>
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			<media:title type="html">Radoslav</media:title>
		</media:content>
	</item>
		<item>
		<title>Úloha 4</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-4/</link>
		<comments>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-4/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 09:40:46 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

		<guid isPermaLink="false">http://pravdepodobnost.wordpress.com/?p=46</guid>
		<description><![CDATA[Nech je neprázdna množina a nech . Potom je -algebra vtedy a len vtedy, keď 1. a 2. Pre akúkoľvek postupnosť množín platí . Dokážte.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=46&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%5COmega&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;Omega' title='&#92;Omega' class='latex' /> je neprázdna množina a nech <img src='http://s0.wp.com/latex.php?latex=%5Cmathcal%7BS%7D+%5Csubseteq+2%5E%7B%5COmega%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;mathcal{S} &#92;subseteq 2^{&#92;Omega}' title='&#92;mathcal{S} &#92;subseteq 2^{&#92;Omega}' class='latex' />. Potom <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C%5Cmathcal%7BS%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega,&#92;mathcal{S})' title='(&#92;Omega,&#92;mathcal{S})' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra vtedy a len vtedy, keď 1. <img src='http://s0.wp.com/latex.php?latex=%5COmega+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;Omega &#92;in &#92;mathcal{S}' title='&#92;Omega &#92;in &#92;mathcal{S}' class='latex' /> a 2. Pre akúkoľvek postupnosť množín <img src='http://s0.wp.com/latex.php?latex=A_1%2CA_2%2C...+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1,A_2,... &#92;in &#92;mathcal{S}' title='A_1,A_2,... &#92;in &#92;mathcal{S}' class='latex' /> platí <img src='http://s0.wp.com/latex.php?latex=%5COmega+%5Csetminus+%5Cleft%28%5Ccap_%7Bi%3D1%7D%5E%7B%5Cinfty%7D+A_i%5Cright%29+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;Omega &#92;setminus &#92;left(&#92;cap_{i=1}^{&#92;infty} A_i&#92;right) &#92;in &#92;mathcal{S}' title='&#92;Omega &#92;setminus &#92;left(&#92;cap_{i=1}^{&#92;infty} A_i&#92;right) &#92;in &#92;mathcal{S}' class='latex' />. Dokážte.</p>
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		<title>Úloha 5</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-5/</link>
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		<pubDate>Tue, 15 Sep 2009 09:30:13 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

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		<description><![CDATA[Nech je -algebra a nech . Symbolom označujeme množinu všetkých tých prvkov , ktoré patria do nekonečne veľa množín a symbolom označujeme množinu všetkých tých prvkov , ktoré patria do všetkých množín , s výnimkou maximálne konečného počtu týchto množín. &#8230; <a href="http://pravdepodobnost.wordpress.com/2009/09/15/uloha-5/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=48&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C%5Cmathcal%7BS%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega,&#92;mathcal{S})' title='(&#92;Omega,&#92;mathcal{S})' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra a nech <img src='http://s0.wp.com/latex.php?latex=A_1%2CA_2%2C...+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1,A_2,... &#92;in &#92;mathcal{S}' title='A_1,A_2,... &#92;in &#92;mathcal{S}' class='latex' />. Symbolom <img src='http://s0.wp.com/latex.php?latex=%5Climsup_%7Bi+%5Cto+%5Cinfty%7D+A_i&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;limsup_{i &#92;to &#92;infty} A_i' title='&#92;limsup_{i &#92;to &#92;infty} A_i' class='latex' /> označujeme množinu všetkých tých prvkov <img src='http://s0.wp.com/latex.php?latex=%5Comega+%5Cin+%5COmega&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;omega &#92;in &#92;Omega' title='&#92;omega &#92;in &#92;Omega' class='latex' />, ktoré patria do nekonečne veľa množín <img src='http://s0.wp.com/latex.php?latex=A_i%2Ci+%5Cin+%5Cmathbb%7BN%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_i,i &#92;in &#92;mathbb{N}' title='A_i,i &#92;in &#92;mathbb{N}' class='latex' /> a symbolom <img src='http://s0.wp.com/latex.php?latex=%5Climinf_%7Bi+%5Cto+%5Cinfty%7D+A_i&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;liminf_{i &#92;to &#92;infty} A_i' title='&#92;liminf_{i &#92;to &#92;infty} A_i' class='latex' /> označujeme množinu všetkých tých prvkov <img src='http://s0.wp.com/latex.php?latex=%5Comega+%5Cin+%5COmega&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;omega &#92;in &#92;Omega' title='&#92;omega &#92;in &#92;Omega' class='latex' />, ktoré patria do všetkých množín <img src='http://s0.wp.com/latex.php?latex=A_i%2Ci+%5Cin+%5Cmathbb%7BN%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_i,i &#92;in &#92;mathbb{N}' title='A_i,i &#92;in &#92;mathbb{N}' class='latex' />, s výnimkou maximálne konečného počtu týchto množín. Presvedčte sa, že<br />
<img src='http://s0.wp.com/latex.php?latex=%5Climsup_%7Bi+%5Cto+%5Cinfty%7D+A_i%3D%5Ccap_%7Bn%3D1%7D%5E%7B%5Cinfty%7D%5Ccup_%7Bk%3Dn%7D%5E%7B%5Cinfty%7D+A_k&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;limsup_{i &#92;to &#92;infty} A_i=&#92;cap_{n=1}^{&#92;infty}&#92;cup_{k=n}^{&#92;infty} A_k' title='&#92;limsup_{i &#92;to &#92;infty} A_i=&#92;cap_{n=1}^{&#92;infty}&#92;cup_{k=n}^{&#92;infty} A_k' class='latex' />,<br />
<img src='http://s0.wp.com/latex.php?latex=%5Climinf_%7Bi+%5Cto+%5Cinfty%7D+A_i%3D%5Ccup_%7Bn%3D1%7D%5E%7B%5Cinfty%7D%5Ccap_%7Bk%3Dn%7D%5E%7B%5Cinfty%7D+A_k.&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;liminf_{i &#92;to &#92;infty} A_i=&#92;cup_{n=1}^{&#92;infty}&#92;cap_{k=n}^{&#92;infty} A_k.' title='&#92;liminf_{i &#92;to &#92;infty} A_i=&#92;cup_{n=1}^{&#92;infty}&#92;cap_{k=n}^{&#92;infty} A_k.' class='latex' /><br />
Zdôvodnite, prečo <img src='http://s0.wp.com/latex.php?latex=%5Climsup_%7Bi+%5Cto+%5Cinfty%7D+A_i+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;limsup_{i &#92;to &#92;infty} A_i &#92;in &#92;mathcal{S}' title='&#92;limsup_{i &#92;to &#92;infty} A_i &#92;in &#92;mathcal{S}' class='latex' /> aj <img src='http://s0.wp.com/latex.php?latex=%5Climinf_%7Bi+%5Cto+%5Cinfty%7D+A_i+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;liminf_{i &#92;to &#92;infty} A_i &#92;in &#92;mathcal{S}' title='&#92;liminf_{i &#92;to &#92;infty} A_i &#92;in &#92;mathcal{S}' class='latex' />.</p>
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			<media:title type="html">Radoslav</media:title>
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		<title>Úloha 6</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-6/</link>
		<comments>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-6/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 09:20:17 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

		<guid isPermaLink="false">http://pravdepodobnost.wordpress.com/?p=51</guid>
		<description><![CDATA[Nech je -algebra, nech a nech . Nech je množina tých prvkov , ktoré patria do a) práve , b) najviac , c) najmenej množín . Dokážte, že .<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=51&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C%5Cmathcal%7BS%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega,&#92;mathcal{S})' title='(&#92;Omega,&#92;mathcal{S})' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra, nech <img src='http://s0.wp.com/latex.php?latex=A_1%2CA_2%2C...+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1,A_2,... &#92;in &#92;mathcal{S}' title='A_1,A_2,... &#92;in &#92;mathcal{S}' class='latex' /> a nech <img src='http://s0.wp.com/latex.php?latex=k+%5Cin+%5Cmathbb%7BN%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='k &#92;in &#92;mathbb{N}' title='k &#92;in &#92;mathbb{N}' class='latex' />. Nech <img src='http://s0.wp.com/latex.php?latex=B&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='B' title='B' class='latex' /> je množina tých prvkov <img src='http://s0.wp.com/latex.php?latex=%5Comega+%5Cin+%5COmega&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;omega &#92;in &#92;Omega' title='&#92;omega &#92;in &#92;Omega' class='latex' />, ktoré patria do</p>
<p>a) práve <img src='http://s0.wp.com/latex.php?latex=k&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='k' title='k' class='latex' />,<br />
b) najviac <img src='http://s0.wp.com/latex.php?latex=k&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='k' title='k' class='latex' />,<br />
c) najmenej <img src='http://s0.wp.com/latex.php?latex=k&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='k' title='k' class='latex' /><br />
množín <img src='http://s0.wp.com/latex.php?latex=A_1%2CA_2%2C...&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A_1,A_2,...' title='A_1,A_2,...' class='latex' />. Dokážte, že <img src='http://s0.wp.com/latex.php?latex=B+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='B &#92;in &#92;mathcal{S}' title='B &#92;in &#92;mathcal{S}' class='latex' />.</p>
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		<title>Úloha 7</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-7/</link>
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		<pubDate>Tue, 15 Sep 2009 09:10:12 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

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		<description><![CDATA[Nech . Presvedčte sa, že potom aj sú -algebry.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=54&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%5COmega+%5Cneq+%5Cemptyset&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;Omega &#92;neq &#92;emptyset' title='&#92;Omega &#92;neq &#92;emptyset' class='latex' />. Presvedčte sa, že potom <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C+2%5E%5COmega%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega, 2^&#92;Omega)' title='(&#92;Omega, 2^&#92;Omega)' class='latex' /> aj <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C+%5Cleft%5C%7B%5COmega%2C%5Cemptyset%5Cright%5C%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega, &#92;left&#92;{&#92;Omega,&#92;emptyset&#92;right&#92;})' title='(&#92;Omega, &#92;left&#92;{&#92;Omega,&#92;emptyset&#92;right&#92;})' class='latex' /> sú <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebry.</p>
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		<title>Úloha 8</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-8/</link>
		<comments>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-8/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 09:00:16 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

		<guid isPermaLink="false">http://pravdepodobnost.wordpress.com/?p=56</guid>
		<description><![CDATA[Nech , . Ukážte, že potom je -algebra. Ak naviac , , je tiež -algebra?<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=56&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=A+%5Csubsetneq+%5COmega&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A &#92;subsetneq &#92;Omega' title='A &#92;subsetneq &#92;Omega' class='latex' />, <img src='http://s0.wp.com/latex.php?latex=A+%5Cneq+%5Cemptyset&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='A &#92;neq &#92;emptyset' title='A &#92;neq &#92;emptyset' class='latex' />. Ukážte, že potom <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C+%5Cleft%5C%7B%5COmega%2C%5Cemptyset%2CA%2C%5COmega%2FA+%5Cright%5C%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega, &#92;left&#92;{&#92;Omega,&#92;emptyset,A,&#92;Omega/A &#92;right&#92;})' title='(&#92;Omega, &#92;left&#92;{&#92;Omega,&#92;emptyset,A,&#92;Omega/A &#92;right&#92;})' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra. Ak naviac <img src='http://s0.wp.com/latex.php?latex=B+%5Csubsetneq+A&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='B &#92;subsetneq A' title='B &#92;subsetneq A' class='latex' />, <img src='http://s0.wp.com/latex.php?latex=B+%5Cneq+%5Cemptyset&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='B &#92;neq &#92;emptyset' title='B &#92;neq &#92;emptyset' class='latex' />, je <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C+%5Cleft%5C%7B%5COmega%2C%5Cemptyset%2C+A%2C+B%2C+A+%5Ccup+B%2C+A+%5Ccap+B+%5Cright%5C%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega, &#92;left&#92;{&#92;Omega,&#92;emptyset, A, B, A &#92;cup B, A &#92;cap B &#92;right&#92;})' title='(&#92;Omega, &#92;left&#92;{&#92;Omega,&#92;emptyset, A, B, A &#92;cup B, A &#92;cap B &#92;right&#92;})' class='latex' /> tiež <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra?</p>
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		<title>Úloha 9</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-9/</link>
		<comments>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-9/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 08:50:50 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

		<guid isPermaLink="false">http://pravdepodobnost.wordpress.com/?p=58</guid>
		<description><![CDATA[Nech . Definujme nasledovné systémy množín: , a . Pre ktoré je -algebra?<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=58&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%5COmega%3D%5Cleft%5C%7Ba%2Cb%2Cc%5Cright%5C%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;Omega=&#92;left&#92;{a,b,c&#92;right&#92;}' title='&#92;Omega=&#92;left&#92;{a,b,c&#92;right&#92;}' class='latex' />. Definujme nasledovné systémy množín:<br />
<img src='http://s0.wp.com/latex.php?latex=%5Cmathcal%7BS%7D_1%3D%5Cleft%5C%7B%5COmega%2C+%5Cemptyset%2C+%5Cleft%5C%7Ba%5Cright%5C%7D%2C%5Cleft%5C%7Bb%5Cright%5C%7D%2C+%5Cleft%5C%7Bc%5Cright%5C%7D+%5Cright%5C%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;mathcal{S}_1=&#92;left&#92;{&#92;Omega, &#92;emptyset, &#92;left&#92;{a&#92;right&#92;},&#92;left&#92;{b&#92;right&#92;}, &#92;left&#92;{c&#92;right&#92;} &#92;right&#92;}' title='&#92;mathcal{S}_1=&#92;left&#92;{&#92;Omega, &#92;emptyset, &#92;left&#92;{a&#92;right&#92;},&#92;left&#92;{b&#92;right&#92;}, &#92;left&#92;{c&#92;right&#92;} &#92;right&#92;}' class='latex' />,<br />
<img src='http://s0.wp.com/latex.php?latex=%5Cmathcal%7BS%7D_2%3D%5Cleft%5C%7B%5COmega%2C+%5Cemptyset%2C%5Cleft%5C%7Ba%5Cright%5C%7D%2C%5Cleft%5C%7Bb%2Cc%5Cright%5C%7D+%5Cright%5C%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;mathcal{S}_2=&#92;left&#92;{&#92;Omega, &#92;emptyset,&#92;left&#92;{a&#92;right&#92;},&#92;left&#92;{b,c&#92;right&#92;} &#92;right&#92;}' title='&#92;mathcal{S}_2=&#92;left&#92;{&#92;Omega, &#92;emptyset,&#92;left&#92;{a&#92;right&#92;},&#92;left&#92;{b,c&#92;right&#92;} &#92;right&#92;}' class='latex' /> a<br />
<img src='http://s0.wp.com/latex.php?latex=%5Cmathcal%7BS%7D_3%3D%5Cleft%5C%7B%5COmega%2C+%5Cemptyset%2C+%5Cleft%5C%7Ba%2Cb%5Cright%5C%7D%2C%5Cleft%5C%7Bb%2Cc%5Cright%5C%7D+%5Cright%5C%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;mathcal{S}_3=&#92;left&#92;{&#92;Omega, &#92;emptyset, &#92;left&#92;{a,b&#92;right&#92;},&#92;left&#92;{b,c&#92;right&#92;} &#92;right&#92;}' title='&#92;mathcal{S}_3=&#92;left&#92;{&#92;Omega, &#92;emptyset, &#92;left&#92;{a,b&#92;right&#92;},&#92;left&#92;{b,c&#92;right&#92;} &#92;right&#92;}' class='latex' />.<br />
Pre ktoré <img src='http://s0.wp.com/latex.php?latex=i&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='i' title='i' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C%5Cmathcal%7BS%7D_i%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega,&#92;mathcal{S}_i)' title='(&#92;Omega,&#92;mathcal{S}_i)' class='latex' /> <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra?</p>
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		<title>Úloha 10</title>
		<link>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-10/</link>
		<comments>http://pravdepodobnost.wordpress.com/2009/09/15/uloha-10/#comments</comments>
		<pubDate>Tue, 15 Sep 2009 08:40:13 +0000</pubDate>
		<dc:creator>Radoslav Harman</dc:creator>
				<category><![CDATA[Bez kategórie]]></category>

		<guid isPermaLink="false">http://pravdepodobnost.wordpress.com/?p=60</guid>
		<description><![CDATA[Nech je -algebra a nech . Definujme nasledovný systém množín: . Potom je tiež -algebra. Dokážte.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=pravdepodobnost.wordpress.com&amp;blog=9501351&amp;post=60&amp;subd=pravdepodobnost&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Nech <img src='http://s0.wp.com/latex.php?latex=%28%5COmega%2C%5Cmathcal%7BS%7D%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(&#92;Omega,&#92;mathcal{S})' title='(&#92;Omega,&#92;mathcal{S})' class='latex' /> je <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra a nech <img src='http://s0.wp.com/latex.php?latex=%5Cemptyset+%5Cneq+A+%5Cin+%5Cmathcal%7BS%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;emptyset &#92;neq A &#92;in &#92;mathcal{S}' title='&#92;emptyset &#92;neq A &#92;in &#92;mathcal{S}' class='latex' />. Definujme nasledovný systém množín: <img src='http://s0.wp.com/latex.php?latex=%5Cmathcal%7BS%7D_A%3D%5Cleft%5C%7BA+%5Ccap+B%3A+B+%5Cin+%5Cmathcal%7BS%7D+%5Cright%5C%7D&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;mathcal{S}_A=&#92;left&#92;{A &#92;cap B: B &#92;in &#92;mathcal{S} &#92;right&#92;}' title='&#92;mathcal{S}_A=&#92;left&#92;{A &#92;cap B: B &#92;in &#92;mathcal{S} &#92;right&#92;}' class='latex' />. Potom <img src='http://s0.wp.com/latex.php?latex=%28A%2C%5Cmathcal%7BS%7D_A%29&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='(A,&#92;mathcal{S}_A)' title='(A,&#92;mathcal{S}_A)' class='latex' /> je tiež <img src='http://s0.wp.com/latex.php?latex=%5Csigma&amp;bg=ffffff&amp;fg=333333&amp;s=0' alt='&#92;sigma' title='&#92;sigma' class='latex' />-algebra. Dokážte.</p>
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