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Suppose the following data show the introductory interest rates on a sample of 5 credit cards: 6, 1.9, 3.6, 4.7, 4. Calculate the standard deviation

Suppose the following data show the introductory interest rates on a sample of 5 credit cards: 6, 1.9, 3.6, 4.7, 4. Calculate the standard deviation of the sample. Note: the numbers may be different from the last problem. (please express your answer using 2 decimal places)

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