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1. You have been given the following sample of stock returns,{5, 2, 12, 0,-4,} Answer the following questions 1 Calculate the mean. 2 Calculate the

1. You have been given the following sample of stock returns,{5, 2, 12, 0,-4,} Answer the following questions

1 Calculate the mean.

2 Calculate the Variance.

3 Calculate the Standard Deviation.

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