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The vice-president of human resources at Lowes Inc. is studying the number of on-the-job accidents over a period of one month. He developed the following

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The vice-president of human resources at Lowes Inc. is studying the number of on-the-job accidents over a period of one month. He developed the following probability distribution. Compute the mean, variance, and standard deviation of the number of accidents in a month. Number of Accidents Probability 0 0.40 1 0.20 2 0.20 3 0.10 4 0.10

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