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icang [17]
3 years ago
11

A certain region of America with over 500,000 households has a mean household income of $70,000 with a standard deviation of $20

,000. Economists plan to take random samples of 625 households and calculate the sample mean income for each sample. Calculate the mean of the sampling distribution of x-bar.
Mathematics
1 answer:
Llana [10]3 years ago
3 0

Answer:

Mean = 70,000 dollars

SD = 800 dollars

For Khan Academy

Step-by-step explanation:

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