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Jamal calculates the mean and standard deviation of a data set of the salaries of...

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Jamal calculates the mean and standard deviation of a data set of the salaries of 10 employees. He then calculates the mean of the salaries after each employee receives a pay increase of $2,000. Which statement is true? The mean of the new data set decreases. The mean of the new data set increases. The mean of both data sets stays the same. There is not enough information to know how the mean will change.

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