Question: Assume that E(X) = 12,P(X 14) = 0.12, and P(X 10) = 0.18. Show that Var(X) is at least 1.2.

Assume that E(X) = 12,P(X ≥ 14) = 0.12, and P(X ≤ 10) = 0.18. Show that Var(X) is at least 1.2.

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