Question

A game has 15 balls for each of the letters B, I, N, G, and O. The table shows the results of drawing balls 1,250 times.

Letter
Frequency
B
247
I
272
N
238
G
241
O
252

For which letter is the experimental probability closest to the theoretical probability?

Answer 1

☆ Answer

There are 5 letters that can be drawn, so there is a total of 75 balls, and each letter has a probability of being drawn. This means one would expect a theoretical frequency of , i.e. any given letter should get drawn 250 times, which means the answer is D