The probability of a student attending every college class is p = .26.The probability of a student attending every college class and earning an A is p = .22.Hence,the probability of a student earning an A,given that he or she attends every college class,is ______.
A) p = .06
B) p = .48
C) p = .85
D) There is not enough information to answer this question.

Question

Quizplus · Accepted Answer

The probability of a student attending every college class and earning an A is .22, while the probability of attending every college class is .26. Therefore, the conditional probability of a student earning an A given that he or she attends every college class is .22/.26 = .85. Therefore, the correct answer is C.

The Probability of a Student Attending Every College Class Is