# If the diameter X [cm] of certain bolts has the density f(x) = k(x - 0.9)(1.1 - x) for 0.9 < x < 1.1 and 0 for other x, what are k, , and 2 ? Sketch f(x).

Chapter 24, PROBLEM SET 24.6 #9

If the diameter X [cm] of certain bolts has the density f(x) = k(x - 0.9)(1.1 - x) for 0.9 < x < 1.1 and 0 for other x, what are k, μ, and σ^{2}? Sketch f(x).

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