(Steps Shown) The number of calls received per day at a crisis hot line is distributed as follows. Find the mean, variance and standard deviation of the
Question: The number of calls received per day at a crisis hot line is distributed as follows. Find the mean, variance and standard deviation of the distribution.
Number of calls -X P(X)
30 .05
31 .21
32 .38
33 .25
34 .11
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