# Question

The random variable A has the following probability distribution:

a. Find the mean and standard deviation of a.

b. How much of the probability distribution is within 2 standard deviations of the mean?

c. What is the probability that A is between µ _ 2σ and m _ 2 σ?

a. Find the mean and standard deviation of a.

b. How much of the probability distribution is within 2 standard deviations of the mean?

c. What is the probability that A is between µ _ 2σ and m _ 2 σ?

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