Question: 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

  1. (a)Determine the mean of x.
  2. (b)Determine the standard deviation of x.
  3. Show all work and round all answers to two decimal places.

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