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 not yellow. Write your answer in simplest form.
A. start fraction 1 over 30 end fraction
B. five-sixths
C. start fraction 2 over 15 end fraction
D. start fraction 1 over 6 end fraction.
There are a total of 7+5+8+4+6=30 marbles, and 5 of them are yellow. Therefore, there are 30-5=25 marbles that are not yellow. The experimental probability of randomly selecting a marble that is not yellow is 25/30, which simplifies to 5/6.
Therefore, the answer is B. five-sixths.
To find the experimental probability of randomly selecting a marble that is not yellow, we need to determine the total number of marbles that are not yellow and divide it by the total number of marbles.
The total number of marbles that are not yellow is 7 (blue) + 8 (red) + 4 (green) + 6 (purple) = 25.
The total number of marbles is 7 (blue) + 5 (yellow) + 8 (red) + 4 (green) + 6 (purple) = 30.
So, the experimental probability of randomly selecting a marble that is not yellow is 25/30, which can be simplified to 5/6.
Therefore, the answer is B. five-sixths.