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The past five monthly returns for PG&E are 3.53 percent, 4.78 percent, 4.13 percent, 7.01 percent, and 3.94 percent. Compute the standard deviation of PG&Es

The past five monthly returns for PG&E are 3.53 percent, 4.78 percent, 4.13 percent, 7.01 percent, and 3.94 percent. Compute the standard deviation of PG&Es monthly returns. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) And its not all 5 added together divided by 5. I checked a similar chegg question with that response and its wrong.

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