document.write( "Question 1210443: Giving a test to a group of students, the grades and gender are summarized below
\n" ); document.write( "A B C Total
\n" ); document.write( "Male 16 22 32 70
\n" ); document.write( "Female 13 17 25 55
\n" ); document.write( "Total 29 39 57 125
\n" ); document.write( "Determine the following probabilities. Write your answers as reduced fractions.
\n" ); document.write( "We randomly select a student. What is the probability that this student got a B?
\n" ); document.write( "P =
\n" ); document.write( "We randomly select a student. What is the probability that this student is a male who got a B?
\n" ); document.write( "P =
\n" ); document.write( "We randomly select a male student. What is the probability that he got a B?
\n" ); document.write( "P
\n" ); document.write( "We randomly select a student who got a B. What is the probability that this student is a male?
\n" ); document.write( "P = \n" ); document.write( "

Algebra.Com's Answer #852597 by Edwin McCravy(20081) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Giving a test to a group of students, the grades and gender are summarized\r\n" );
document.write( "below:\r\n" );
document.write( "        A   B   C Total\r\n" );
document.write( "Male   16  22  32    70\r\n" );
document.write( "Female 13  17  25    55\r\n" );
document.write( "Total  29  39  57   125\r\n" );
document.write( "Determine the following probabilities. Write your answers as reduced fractions.\r\n" );
document.write( "-----------------------------------------\r\n" );
document.write( "We randomly select a student. What is the probability that this student got a B?\r\n" );
document.write( "P(B) = 39/125\r\n" );
document.write( "-----------------------------------------\r\n" );
document.write( "We randomly select a student. What is the probability that this student is a male who got a B?\r\n" );
document.write( "P(M AND B) = 22/125\r\n" );
document.write( "-----------------------------------------\r\n" );
document.write( "We randomly select a male student. What is the probability that he got a B?\r\n" );
document.write( "P(B|M) = P(B AND M)/P(M) = \r\n" );
document.write( "-----------------------------------------\r\n" );
document.write( "We randomly select a student who got a B. What is the probability that this student is a male?\r\n" );
document.write( "P(B|M) = P(M AND B)/P(B) = \r\n" );
document.write( "\r\n" );
document.write( "Edwin

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