document.write( "Question 1150401: In a particular math class, there is a 90% chance that a student will pass if they study regularly. The probability of passing if a student does not study is 30%. If 75% of the students study, what is the probability that a randomly selected student will pass the class? \n" ); document.write( "

Algebra.Com's Answer #771791 by ikleyn(52798) $\"\"$ $\"About$

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document.write( "    P = 0.75*0.9 + (1-0.75)*0.3 = 0.75.      ANSWER\r\n" );
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document.write( "This formula is OBVIOUS and SELF-EXPLANATORY.\r\n" );
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