document.write( "Question 1209842: 4.24. There are two urns containing pens and pencils. Urn #1 contains three
\n" ); document.write( "pens and seven pencils and Urn #2 contains eight pens and four pencils.
\n" ); document.write( "(a) An urn is chosen at random and an object is drawn. What is the proba-
\n" ); document.write( "bility that it is a pencil?
\n" ); document.write( "(b) An urn is chosen at random and an object is drawn. If the object drawn
\n" ); document.write( "is a pencil, what is the probability that it came from Urn #1?
\n" ); document.write( "(c) If an urn is chosen at random and two objects are drawn simultaneously,
\n" ); document.write( "what is the probability that both are pencils? \n" ); document.write( "

Algebra.Com's Answer #850818 by ikleyn(52858) $\"\"$ $\"About$

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\n" ); document.write( "4.24. There are two urns containing pens and pencils. Urn #1 contains three
\n" ); document.write( "pens and seven pencils and Urn #2 contains eight pens and four pencils.
\n" ); document.write( "(a) An urn is chosen at random and an object is drawn. What is the proba-
\n" ); document.write( "bility that it is a pencil?
\n" ); document.write( "(b) An urn is chosen at random and an object is drawn. If the object drawn
\n" ); document.write( "is a pencil, what is the probability that it came from Urn #1?
\n" ); document.write( "(c) If an urn is chosen at random and two objects are drawn simultaneously from this urn,
\n" ); document.write( "what is the probability that both are pencils?
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\n" ); document.write( "\n" ); document.write( " I edited your post to make the problem as clear as it should be.\r
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document.write( "(a)  P(a) =  +  =  +  =  +  =  = .\r\n" );
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document.write( "(b)  P(b) =  = .\r\n" );
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document.write( "(c)  P(c) =  +  =  +  =  +  =  +  =  =  = .\r\n" );
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