Question: 9. Assume random variable x follows a probability distribution shown in the table below. Determine the mean and standard deviation of x. Show all work.

9. Assume random variable x follows a probability distribution shown in the table below. Determine the mean and standard deviation of x. Show all work. Just the answer, without supporting work, will receive no credit.

x	-2	0	1	3	5
P(x)	0.1	0.2	0.3	0.1	0.3

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