document.write( "Question 1048572: A fast-food restaurant chain with 700 outlets in the United States describes the geographic location of its restaurants with the accompanying table of percentages. A restaurant is to be chosen at random from the 700 to test market a new style of chicken. Given that the restaurant is located in the eastern United States, what is the probability it is located in a city with a population of at least 10,000?\r
\n" ); document.write( "\n" ); document.write( "Population of City | NE | SE | SW | NW
\n" ); document.write( ".............. < 10,000 | 7% | 6% | 3% | 0%
\n" ); document.write( ".10,000 to 100,000 | 15%| 3% | 12%| 5%
\n" ); document.write( "............. > 100,000 | 20%| 4% | 1% | 24%
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\n" ); document.write( "a) 0.764
\n" ); document.write( "b) 0.5
\n" ); document.write( "c) 0.236
\n" ); document.write( "d) 0.42\r
\n" ); document.write( "\n" ); document.write( "Guessed d) .42 and got it wrong. How do I solve this? \n" ); document.write( "

Algebra.Com's Answer #664177 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi  \r
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document.write( "Population of City | NE | SE | SW | NW
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document.write( "...   < 10,000     | 7% | 6% | 3% | 0%
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document.write( ".10,000 to 100,000 | 15%| 3% | 12%| 5%
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document.write( ".... > 100,000     | 20%| 4% | 1% | 24%
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document.write( "total	             42%  13%\r
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document.write( "P(>=10,000 |Eastern)  | reads \"Given\"
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document.write( " P(A|B) = P(A and B)/P(B)
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document.write( "P(>=10,000 |Eastern) = P(>=10000 and Eastern)/P(Eastern) = = 42/55 =  .764\r
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