Question

There are 9 red gumballs, 5 green gumballs, 8 yellow gumballs, and 8 blue gumballs, what is the probability of choosing green then yellow. please explain how you got your answer.

Answer 1

9+5+8+8=30 <-- all balls

The probability of choosing green ball is
`(5)/(30)=(1)/(6)`
The probability of choosing yellow ball is
`(8)/(30)=(4)/(15)`

So, the probability of choosing green ball and then yellow one is
`(1)/(6)\cdot(4)/(15)=(2)/(45)`