Question

The mean and the variance of a binomial distribution with n = 20 and p =0.3 are​

Answer 1

Answer:

mean = 6 & Variance = 4.2

Step-by-step explanation:

Mean = np

= 20 × 0.3

= 6

Variance = npq

= 20 × 0.3 × (1-0.3)

=20 × 0.3 × 0.7

=4.2