Question

3)

The success rate of the seller is 0.1. He can sell (success) or not. What is the probability of one success in five customers.

Answer 1

solution

Given that ,

p = 0.1

1 - p = 1 - 0.1 = 0.9

n =5

Using binomial probability formula ,

P(X = x) = (n C x) * px * (1 - p)n - x

P(X =1 ) = (5 C 1) * 0.11 * (0.90)4

probability =0.3281