Differentiable an equivalent condition

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A function g(x) is convex if the chord connecting any two points on the function's graph lies above the graph. When g(x) is differentiable, an equivalent condition is that for every x, the tangent line at x lies entirely on or below the graph. (See the figure below.) How does g(m) = g(E(X)) compare to E(g(X))?

Reference no: EM131076411

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