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

Total number of marble=18

probability of getting white marble = 2/18 =1/9

Now,

probability of not getting white marble = 1 - 1/9 = 8 / 9

Answer 2

8/9 (simplified)

Explanation:

Total marbles = 18

Total of marbles not white = 16

Numerator = 16 / Denominator = 18

= 16/18

= 8/9 (simplified)