Question

if 8 out of 12 marbles in a bag are green, what is the probability that a marble selected at random from the bag will NOT be green?​

Answer 1

The Probability that a marble selected at random from the bag will NOT be green is 1/3

Explanation:

The probability of selecting a green bag

= Total No.of green bags/ Total number of bags

=8/12

= 2/3

Then the probability not of selecting a green bag

= 1 - The probability of selecting a green bag

= 1-(2/3)

= 1/3