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Question
61 A professor rated how frequently students actively participated in class and then calculated the probability of getting various grades broken down by participation. The data follow:A B C D F
Frequently .06 .20 .03 .01 .00
Sometimes .03 .12 .20 .03 .02
Rarely/Never .01 .08 .07 .06 .08
a) What is the simple probability of getting an A?
b) What is the probability of getting an A given the student participated frequently?
c) What is the simple probability of failing?
d) What is the probability of failing given the student participated rarely/never?
Answer
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