The lengths of plate glass parts are measured to the nearest tenth of a millimeter. The lengths are uniformly distributed with values at every tenth of a millimeter starting at 590.0 and continuing through 590.4. Determine the mean and variance of the lengths. (Show solution) a. E(X) = 590.2 mm., V(X) = 0.20 mm2 O b. E(X) = 590.2 mm., V(X) = 0.02 mm2 O C. E(X) = 590.45 mm., V(X) = 0.0825 mm2 O d. NONE

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