document.write( "Question 1205040: An urn contains 8 red chips, 10 green chips, and
\n" ); document.write( "2 white chips. A chip is drawn and replaced, and then a
\n" ); document.write( "second chip drawn. What is the probability of
\n" ); document.write( "(a) a white chip on the first draw?
\n" ); document.write( "(b) a white chip on the first draw and a red on the
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\n" ); document.write( "(c) two green chips being drawn?
\n" ); document.write( "(d) a red chip on the second given that a white chip
\n" ); document.write( "was drawn on the first? \n" ); document.write( "

Algebra.Com's Answer #841653 by ikleyn(52905) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "An urn contains 8 red chips, 10 green chips, and 2 white chips.
\n" ); document.write( "A chip is drawn and replaced, and then a second chip drawn.
\n" ); document.write( "What is the probability of
\n" ); document.write( "(a) a white chip on the first draw?
\n" ); document.write( "(b) a white chip on the first draw and a red on the second?
\n" ); document.write( "(c) two green chips being drawn?
\n" ); document.write( "(d) a red chip on the second given that a white chip was drawn on the first?
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\n" ); document.write( "\n" ); document.write( "The total number of balls is 8 + 10 + 2 = 20.\r
\n" ); document.write( "\n" ); document.write( "Since this experiment is with replacement, the situation after first draw and replacement
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document.write( "(a)  P =  =  = 0.1 = 10%.    ANSWER\r\n" );
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document.write( "(b)  P =  =  =  =  = 0.04 = 4%.    ANSWER\r\n" );
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document.write( "(c)  P =  =  =  =  = 0.25 = 25%.    ANSWER\r\n" );
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document.write( "(d)  P =  =  =  = 0.4 = 40%, independently of the first draw.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "All formulas are SELF-EXPLANATORY.\r
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