Question

Read the following prompt and type your response in the space provided.

Diana has a bag with 20 marbles in it. Some of the marbles are blue, some are green, and some are yellow.



She draws one marble at random, records the color, and returns it to the bag.



Here is her data after 1000 trials:



Blue Green Yellow


36 99 865



Estimate the probability that a marble drawn at random will be blue.
Estimate the probability that a marble drawn at random will be green.
Estimate the probability that a marble drawn at random will be yellow.
Express each probability estimate as a fraction with 20 in the denominator.

Answer 1

0.72/20. 1.98/20. 17.3/20.

Explanation:

1000/20 = 50

for blue:

36/1000. divide top and bottom by 50 to get 0.72/20

for green:

99/1000. divide top and bottom by 50 to get 1.98/20

for yellow:

865/1000. divide top and bottom by 50 to get 17.3/20