document.write( "Question 1169075: A mathematics class has 52 students, 32 of whom are males and the rest are females. A total of 21 of the males and 15 of the females got a grade above 2.0. What is the probability that if a student is chosen at random, this student has either a grade above 2.0 or is a male?
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Algebra.Com's Answer #793857 by Boreal(15235) You can put this solution on YOUR website! ======<2====>2=====total \n" ); document.write( "M-------11-----21------32 \n" ); document.write( "F--------5-----15-------20 \n" ); document.write( "total----16----36-------52\r \n" ); document.write( "\n" ); document.write( "grade above 2.0 is 36/52 \n" ); document.write( "male is 32/52 \n" ); document.write( "both is 21/52 \n" ); document.write( "add the first two (68/52) and subtract the double counting 21/52 to get 47/52 \n" ); document.write( "or...just look at what it isn't--a female with <2 which is 5/52 so the complement is 47/52 \n" ); document.write( " |