Question

Question #0eb8e

Answer 1

`0.311462`

Explanation:

`C(7,5) (3/4)^5 (1/4)^2`
`= 21 * 3^5 / 4^7`
`= 21 * 243 / 16384`
`= 0.311462`

`C(7,5) = (7!)/(5!2!) = 21`