About 60% of U.S full-time college students drank alcohol within a one-month period. You randomly select six U.S. full-time coll

Question

3 years ago

14

ege students. Find the probability that the number of U.S. full-time college students who drank alcohol within a one-month period is exactly two.

1 answer:

Gekata [30.6K] · Answer 1 · 2022-09-02T15:06:38+03:00

Answer:

13.82%

Step-by-step explanation:

Here we have proportion of U.S. full time college students= p = 0.60, Random sample = n = 6

Here we apply Binomial distribution .

p ( X =x ) = nCx * px * ( 1 -p) n-x

a) Exactly two.

P ( x = 2 ) = 6C2 * 0.602 * ( 1 -0.60) 6-2

= 0.1382