Use the definition of the mean and variance

Reference no: EM131422794

A random variable with given mean and standard deviation. Here is a simple way to create a random variable X that has mean μ and standard deviation σ: X takes only the two values μ - σ and μ + σ, each with probability 0.5.

Use the definition of the mean and variance for discrete random variables to show that X does have mean μ and standard deviation σ.

Reference no: EM131422794

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