SOLUTION: 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
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-> SOLUTION: 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
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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?
You can put this solution on YOUR website! ======<2====>2=====total
M-------11-----21------32
F--------5-----15-------20
total----16----36-------52
grade above 2.0 is 36/52
male is 32/52
both is 21/52
add the first two (68/52) and subtract the double counting 21/52 to get 47/52
or...just look at what it isn't--a female with <2 which is 5/52 so the complement is 47/52
