Question

Assume that when adults with smartphones are randomly​ selected,36​%use them in meetings or classes. If 8adult smartphone users are randomly​ selected, find the probability that exactly 3

of them use their smartphones in meetings or classes.

Answer 1

n = random sample of size = 8

p = probability of success = 0.36 ( We converted 36 % in to decimal )

We use binomial distribution

We have to find probability That exactly 3 of then use their smartphones in meeting or class

So we take x = 3

Final answer :-

Probability that exactly 3 of them use their smartphones in meetings or classes = 0.280540392