Question

A bag contains 5 blue, 4 red, 7 black and 2 white marbles. What is the probability of selecting a marble that is NOT white?

Answer 1

8/9

Explanation:

P(white) = (2) ÷ (5+4+7+2) = (2)/(18) = 1/9

P(not white) = 1 - P(white) = 1 - 1/9 = 8/9

Answer 2

5+4+7+2=18

18-2=16

16/18

88% chance of selecting a marble that isnt white