Question: 1. The following probability distribution table is for the random variable, x, the number of computers in a household.Show all work to answer the following

1.The following probability distribution table is for the random variable, x, the number of computers in a household.Show all work to answer the following questions.

x P(x)

0 0.12

1 0.25

2 0.30

3 0.28

4 0.05

(a)Determine the mean of x.

(b)Determine the standard deviation of x.

Show all work and round all answers to two decimal places.

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