SOLUTION: In a high school graduating class of 72 students, 28 are on the honor roll. Of these 18 are going on to college, and of the other 44 students, 12 are going on to college. If a stud

Algebra ->  Probability-and-statistics -> SOLUTION: In a high school graduating class of 72 students, 28 are on the honor roll. Of these 18 are going on to college, and of the other 44 students, 12 are going on to college. If a stud      Log On


   

Question 456601: In a high school graduating class of 72 students, 28 are on the honor roll. Of these 18 are going on to college, and of the other 44 students, 12 are going on to college. If a student is selected at random from the class, what is the probability that the person chosen is (a) going to college, (b) not going to college, and (c) on the honor roll, but not going to college?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
(18+12)/72= 5/12 probability of going to college.
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1- 5/12 = 7/12 probability of not going to college.
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(28-18)/28 = 5/14 probability of being on the honor roll, but not going to college.