Question

A fair spinner is divided into 3 equal sections : red blue and green, it is spun 5 times what is the probability of getting red twice

Answer 1

80/243

or

.329218107

Explanation:

This is a binomial distribtuion

THe probability of red= 1/3

the probability of not red= 2/3

Probability of getting exactly 2 reds in 5 spins

`{5\choose2}*(1)/(3)^2*(2)/(3)^3=.329218107`

or

80/243