document.write( "Question 917486: Grade___Students__>8 HRS.__<8 HRS.
\n" ); document.write( " A_______13_______12_______1
\n" ); document.write( " B_______10_______8________2
\n" ); document.write( " C_______8________6________2
\n" ); document.write( " D_______9________2________7
\n" ); document.write( " F_______10_______1________9
\n" ); document.write( " What is the probability of a randomly selected student having earned an A on the exam given they devoted no more than 8 hours to studying for the exam?\r
\n" ); document.write( "\n" ); document.write( "a. 0.12
\n" ); document.write( "b. 0.21
\n" ); document.write( "c. 0.17
\n" ); document.write( "d. 0.05
\n" ); document.write( "I am confuse on how to solve this problem can you please help me out. Thank. \n" ); document.write( "

Algebra.Com's Answer #556677 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "Trouble only because Totals hadn't been filled in:
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document.write( "Grade___Students__>8 HRS.__<8 HRS.
\n" );
document.write( " A_______13_______12_______1
\n" );
document.write( " B_______10_______8________2
\n" );
document.write( " C_______8________6________2
\n" );
document.write( " D_______9________2________7
\n" );
document.write( " F_______10_______1________9
\n" );
document.write( "Tot______50______29________21 
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document.write( "P(A|B) = P(A and B)/P(B)
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document.write( "P(A |  ≤ 8) =    = 1/21 = .05 rounded \n" );
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