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23. Suppose X has a mean of 100 and variance of 49 and standard deviation of 7. a. Find the mean of 3X. b. Find

23. Suppose X has a mean of 100 and variance of 49 and standard deviation of 7. a. Find the mean of 3X. b. Find the variance of 3X c. Find the standard deviation of 3X d. Find the mean of 3X-1 e. Find the variance of 3X-1 f. Find the standard deviation of 3X - 1

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