If X follows a binomial distribution with mean 4 and variance 2, find P(X ≥ 5).

Given that parameters for binomial distribution are n, p

Now, np = 4

⇒ n = 8

The required binomial distribution is given by,

Now, P(X≥5) = P(X = 5) + P(X = 6) + P(X = 7) + P(X = 8)

17