Question

Joseph has a bag filled with 2 red, 4 green, 10 yellow, and 9 purple marbles. Determine P(not purple) when choosing one marble from the bag.

64%
36%
24%
8%

Answer 1

Probability = # of desired results / # of total results

We want the probability that a marble is not purple. There are 16 marbles total which are not purple. There are 25 total marbles.

P(not purple) = # of not purple / # of total marbles

P(not purple) = 16 / 25

P(not purple) = 0.64 = 64%

Answer: 64%

Hope this helps!