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Examine the following probability distribution: Return Probability 0.04 0.1 0.06 0.2 0.08 0.4 0.1 0.2 0.12 0.1 How do we find out the mean and

Examine the following probability distribution:

Return	Probability
0.04	0.1
0.06	0.2
0.08	0.4
0.1	0.2
0.12	0.1

How do we find out the mean and standard deviation for this question? Kindly explain.

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