Question

A coin is tossed 14 times. What is the probability of getting heads exactly 5 times?

Answer 1

`0.1222`

Explanation:

`"Assuming the coin is fair so P[head]=P[tail]=1/2, we have"`
`C(14,5) (1/2)^14 = 0.1222`
`C(14,5) = (14!)/(9!5!) " (combinations)"`