Suppose the following data show the introductory interest rates on a sample of 5 credit cards: 5.3, 1.3, 3.6, 5.3, 4. Calculate the standard deviation of the sample. Note: the numbers may be different...

Suppose the following data show the introductory interest rates on a sample of 5 credit cards: 5.3, 1.3, 3.6, 5.3, 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)