Question

A jar has marbles in these three colors only: 5 green, 3 blue, 7 red.

What is the probability of randomly choosing a red and then a green marble? You
keep the red marble after choosing it.

Answer 1

Probability of choosing a red marbles = 7/15

Probability of choosing a green marble = 5/15

Explanation:

Formula = Marble/Total of the whole marble

= red marbles /Total of the whole marble

= 7/15

AND

green marble/Total of the whole marble

= 5/15