Question

If there is a 30% chance a student will fail a class at Fresno State, find the probability that of four randomly chosen students.All fail a class.

Answer 1

81%

Explanation:

If there is a 30 percent chance a student will fail a class at Fresno State, we can simply multiply the percentage by the probabilities of all students failing. Every option available:

P(All four fail) = 1 student fails * 2 students fail * 3 students fail * 4 students fail

P(All four fail) = 0.3 * 0.3 * 0.3 * 0.3

P(All four fail) = 0.0081

0.0081 = 81%