Suppose 10 students are enrolled in a class and the probability of at least 8 showing up on a given day is 90 percent. Then the probability of 7 or fewer showing that day is 10 percent.

Question

Quizplus · Accepted Answer

The probability of at least 8 students showing up is 90%, so the probability of 7 or fewer showing up is the complement of this event, which is 100% - 90% = 10%.

Suppose 10 Students Are Enrolled in a Class and the Probability