The manager of an industrial plant is planning to buy a new machine. for each day’s operation, the number of repairs x, that the machine needs is a poisson random variable with mean 0.96 repairs per day. the daily cost of operating the machine is c = 160 + 40x2 . find the expected value of the daily cost of operating the machine.

 Expected value of the daily cost of operating the machine is 235.264.

Step-by-step explanation:

Since we have given that

E[x]= 0.96 repairs per day

And Var[x] = 0.96 repairs per day.

Hence, Expected value of the daily cost of operating the machine is 235.264.

21

Step-by-step explanation:

2 digit number| 2 and 1 that's 2 digits

factor of 84 21 x 4=84  21 42 63 84

multiple of 7  7 x 3=21