probability

Question

Tyler believes that an 8-sided die can be used to predict whether customers at his store will use a coupon when making their purchases, with a roll of 1 indicating a coupon and all other outcomes indicating no coupon. Today, 4 of the first 48 customers in the store used a coupon. How does the experimental probability of a customer using a coupon compare to the theoretical probability of Tyler’s die?
The experimental probability is greater than the theoretical probability by more than 2%.
The experimental probability is less than the theoretical probability by more than 2%.
The experimental probability is greater than the theoretical probability, but within 2%.
The experimental probability is less than the theoretical probability, but within 2%.

Answer 1

P(theoretical) = 1/8 = 0.125

 

P(observed) = 4/48 = 1/12 = 0.0833

 

These two are equal. You should be able to answer