A bag contains 6 red marbles, 4 blue marbles and 8 green marbles. If three marbles are drawn out of the bag, what is the probability, to the nearest 10th of a percent, that all three marbles drawn will be green?

Total number of marbles = 18

Number of green marbles = 8

Number of ways to choose 3 green marbles =

Number of ways to choose 3 marbles from the total 18 marbles=

Probability 0f choose 3 green from 18 marbles

                                                                    =

                                                                    = 0.0686 = 6.9%

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

your answer is  

a.

5

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