Question

Let `X` be a binomial random variable with `p=0.6` and `n=10`. What is `P(X ≤ 2)`?

Answer 1

`P(X<=2)` `~~` 1.23%
OR
0.0123

Explanation:

You may calculate the probability of a binomial random variable in several ways, but using a calculator is likely to be the most efficient. Using the command: 2nd -> distr -> binomcdf -> binomcdf (10, 0.6, 2) = 0.0122945536, is approximately 1.23%