A 911 service center recorded the number of calls received per hour. The random variable x represents the number of calls per hour for one week. x 0 1 2 3 4 5 6 7 P(x) 0.01 0.10 0.26 0.33 0.18 0.06 0.03 0.03 Find the mean, variance, standard deviation, expected value of the probability of distribution and interpret the results
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