SOLUTION: Suppose that 70% of students in a college have a smart phone. If you select three students at random, what is the probability that all three have a smart phone?

Algebra ->  Probability-and-statistics -> SOLUTION: Suppose that 70% of students in a college have a smart phone. If you select three students at random, what is the probability that all three have a smart phone?      Log On


   



Question 1191191: Suppose that 70% of students in a college have a smart phone. If you select three students at random, what is the probability that all three have a smart phone?
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.

These are 3 independent events, so we multiply three probability values


    P = 0.7*0.7*0.7 = 0.7%5E3 = 0.343.      ANSWER

Solved.