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 is satisfied given that they use system 9?
A).295
B).893
C).705
D).107

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 is satisfied given that they use system 9?
A).295 
B).893 
C).705 
D).107

Quizplus · Accepted Answer

The probability of a person being satisfied given that they use system 9 can be found by dividing the number of satisfied users who use system 9 (67) by the total number of users who use system 9 (75). This gives us 67/75 = 0.893 or 89.3%. Therefore, the best choice is B.

A Marketing Researcher at a Computer Company Did a Study