From a barrel of colored marbles, you randomly select 7 blue, 5 yellow, 8 red, 4 green, and 6 purple marbles.
Find the experimental probability of randomly selecting a marble that is either green or purple. Write your answer in simplest form.
A. one-tenth
B. one-fifth
C. one-third
D. two-fifteenths
1 answer
The total number of marbles is 30 (7+5+8+4+6). The number of marbles that are either green or purple is 4+6=10. The experimental probability is then 10/30, which simplifies to 1/3. So the answer is C. one-third.