Multiple Choice
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 user is satisfied with either system 9 or system 10?
A) .813
B) .187
C) .740
D) .260
Correct Answer:
Verified
Correct Answer:
Verified
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