Question

Please help

18) Random variable Xhas a binomial distribution with sample size (n) - 2 and probability of success (p)-0.4. PIX A)0.6 is given by, C) 0.9 B) 0.4 D 0.48

Answer 1

Solution: Option ( D ) = 0.48

n = 2

p = 0.4

binomial probability distribution

Formula:

P_{(k out of n )}= n!*p^k * q^n-k / k! *(n - k)!

P( x = 1 ) = 2!*0.4¹ * 0.6^2-1 / 1! *(2 - 1)! = 0.48