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The Mean Annual Income for People in a Certain City

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Question 39
Multiple Choice
arrowQuestion 39arrow
Multiple Choice

The mean annual income for people in a certain city (in thousands of dollars) is 42, with a standard deviation of 38. A pollster draws a sample of 40 people to interview. What is the probability that the sample mean income is less than 35 (thousands of dollars)


A)0.8554
B)0.1210
C)0.1446
D)0.0934

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