Question

A bag contains 2 blue, 4 green, and 3 white chips. What is the probability of drawing a white chip then another white chip without replacement?

A.) 7/9


B.) 8/81


C.) 2/3


D.) 1/12

Answer 1

total number of chips: 2 + 4 +3 = 9

total white chips = 3
probability of picking white first = 3/9 = 1/3

after taking one chip there would be 9-1 = 8 chips left

and 3-1 2 white chips left

probability of picking 2nd white chip = 2/8 = 1/4

probability of picking both = 1/3 x 1/4 = 1/12
answer is D