The table shows the results of randomly selecting colored marbles from a bag 36 times. The marble was returned to the bag after each selection.

Question

White Red Black Blue
Number of
Times
Selected 8 14 9 5

Based on these results, what is the expected probability of randomly selecting a black marble from the bag in one attempt?
Responses

A 0.1390.139

B 0.220.22

C 0.250.25

D 0.9

Answer 1

The expected probability of randomly selecting a black marble can be calculated by dividing the number of times a black marble was selected (9) by the total number of selections (36).

Probability = 9/36 = 0.25

Therefore, the correct answer is:

C) 0.25