Question

A coin was flipped 150 times. The results of the experiment are shown in the following table:

Heads Tails
90 60


Which of the following best describes the experimental probability of getting heads?

It is 10% higher than the theoretical probability.

It is 10% lower than the theoretical probability.

It is equal to the theoretical probability for this data.

The experimental probability cannot be concluded from the data in the table.

Answer 1

It is 10% higher than the theoretical probability

First you need to find the experimental probability of each.

90/150 = 60%

60/150= 40%

Then since there are 2 sides, you know the theoratical probability is 50%

60% - 50% = 10%.

10% higher. <3

Answer 2

It is 10% higher than the theoretical probability.