I am only providing the numbers for your review. It comes out to be the patient would ring 2.32 times. I need to know the below question. A hospital researcher is interested in the number of times the...

I am only providing the numbers for your review. It comes out to be the patient would ring 2.32 times. I need to know the below question.

A hospital researcher is interested in the number of times the average post-op patient will ring the nurse during a 12-hour shift. For a random sample of 50 patients, the following information was obtained.

Number of times a patient will ring the nurse, x 0 1 2 3 4 5

Probability that a patient will ring the nurse, P(x) 0.08  0.16  0.32  0.28  0.12  0.04

1. 
   How would you use the expected value as one measure for consideration about when to discharge the patient?