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Use the probability distribution to complete parts (a) and (b) below The number of defects per 1000 machine parts inspected Defects 0 2 3 4

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Use the probability distribution to complete parts (a) and (b) below The number of defects per 1000 machine parts inspected Defects 0 2 3 4 5 D Probability 0.264 0.295 0.242 0.149 0.037 0.013 (a) Find the mean, variance, and standard deviation of the probability distribution

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