# Question

The formula for finding the variance for a probability distribution is

σ2 = ∑(X- μ)2. P(X)

Verify algebraically that this formula gives the same result as the shortcut formula shown in this section.

σ2 = ∑(X- μ)2. P(X)

Verify algebraically that this formula gives the same result as the shortcut formula shown in this section.

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