Question

Consider a binomial experiment with n = 9 trials where the probability of success on a single trial is p = 0.10.

(Round your answers to three decimal places.)

(a) Find P(r = 0).

(b) Find P(r ≥ 1) by using the complement rule.

Answer 1

Solution:

Given:

n = 9

p = 0.10

Part a)  Find P(r = 0).

Binomial probability formula :

Where q = 1 – p = 1 - 0.10 = 0.90

thus

Part b) Find P(r ≥ 1) by using the complement rule.