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

The random variable A has the following probability distribution:
align="center">The random variable A has the following probability distribution: a.

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?

4 P(A) 0.1

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