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Complete parts​ (a) and​ (b) using the probability distribution below.
The number of overtime hours worked in one week per employee
Overtime hours
0
1
2
3
4
5
6
Probability
0.031
0.057
0.171
0.295
0.212
0.145
0.089
​(a) Find the​ mean, variance, and standard deviation of the probability distribution.
Find the mean of the probability distribution.
mu
equalsnothing
​(Round to one decimal place as​ needed.)