Question

The probability model below describes the number of repair calls that an appliance repair shop may receive during an hour. On average, the shop receives 1.2 calls an hour, with a standard deviation of 0.87 calls. Find the mean and standard deviation of the number of repair calls the appliance shop should expect during an 8-hour day. Assume that a variation of 1 standard deviation is typical. Repair Calls Probability 0 0.2 1 0.5 2 0.2 3 0.1 A typical 8-hour day will have about $\boxed{ }$ to $\boxed{ }$ repair calls. (Round to the nearest integer as needed. Use ascending order.)

          The probability model below describes the number of repair calls that an appliance repair shop may receive during an hour. On average, the shop receives 1.2 calls an hour, with a standard deviation of 0.87 calls. Find the mean and standard deviation of the number of repair calls the appliance shop should expect during an 8-hour day. Assume that a variation of 1 standard deviation is typical.
Repair Calls	Probability
0	0.2
1	0.5
2	0.2
3	0.1
A typical 8-hour day will have about $\boxed{ }$ to $\boxed{ }$ repair calls.
(Round to the nearest integer as needed. Use ascending order.)

the probability model below describes the number of repair calls that an appliance repair shop may receive during an hour on average the shop receives 12 calls an hour with a standard deviat 44772

Added by Patrick P.

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