A restaurant owner has found that 80% of her customers return to the restaurant within two weeks. She wants to create a tool that will simulate the habits of her customers and allow her to predict the probability that three of the next four customers to visit her restaurant will return within two weeks.

Question

A restaurant owner has found that 80% of her customers return to the restaurant within two weeks. She wants to create a tool that will simulate the habits of her customers and allow her to predict the probability that three of the next four customers to visit her restaurant will return within two weeks.

Which spinner simulation uses an appropriate device and has the correct number of trials?
A. a spinner divided into 5 congruent sectors, spun 3 times
B. a spinner divided into 5 congruent sectors, spun 4 times
C. a spinner divided into 2 congruent sectors, spun 3 times
D. a spinner divided into 2 congruent sectors, spun 4 times

Answer 1

B. a spinner divided into 5 congruent sectors, spun 4 times

This simulation would be appropriate as it reflects the scenario where the restaurant owner is trying to predict the probability that three out of the next four customers will return within two weeks. Each spin represents the probability of a customer returning or not returning within two weeks.