Question

According to a national survey, 16% of U.S. adults use the Internet to make telephone calls. in a random survey 100 adults what is the probability that at most 20 of them use the internet to make telephone calls. Please help ASAP!!!

Answer 1

@e.mccormick

Answer 2

you can use binomial probability distribution

Answer 3

there are two ways to solve this. you can solve it exactly
or you can use a normal curve approximation