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Consider the data set. 2,4,6,7,9 (a)Find the range. (Enter an exact number.) Which I know the answer is 7. (b)Use the defining formula to compute

Consider the data set.

2,4,6,7,9

(a)Find the range. (Enter an exact number.) Which I know the answer is 7.

(b)Use the defining formula to compute the sample standard deviations. (Enter a number. Round your answer to two decimal places.)

(c)Use the defining formula to compute the population standard deviation. (Enter a number. Round your answer to two decimal places.)

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