Question

This is a multiple choice problem. The answer is either A, B, or C.

In San Francisco, 30% of workers take public transportation. A sample of 10 workers is chosen. To find the probability that exactly 3 workers out of the sample of ten take public transportation, we would compute:

A.) the cumulative binomial distribution with n = 3, p = 0.3, and x = 10

B.) the binomial probability mass function with n = 10, p = 0.3, and x = 3

C.) the cumulative binomial distribution with n = 10, p = 0.3, and x = 3

Answer 1

n = sample size = 10

p = probability of sleting public transport = 0.30

x = no. of favorable event = 3

as this is a binomail distribution

option C is correct

C.) the cumulative binomial distribution with n = 10, p = 0.3, and x = 3