A marketing researcher at a computer company did a study examining user satisfaction with two operating systems.A total of 300 users were surveyed on the type of operating system used and their satisfaction with it.Use the following data set to answer questions 6-14:
What is the probability that a person uses system 9?
A).813
B).187
C).740
D).260

Question

A marketing researcher at a computer company did a study examining user satisfaction with two operating systems.A total of 300 users were surveyed on the type of operating system used and their satisfaction with it.Use the following data set to answer questions 6-14: 
What is the probability that a person uses system 9?
A).813 
B).187 
C).740 
D).260

Quizplus · Accepted Answer

There are 59 people who use system 9 out of a total of 300, so the probability of a person using system 9 is 59/300 = 0.187 or approximately 18.7%. Therefore, the correct answer is B.

A Marketing Researcher at a Computer Company Did a Study