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.
x | P(x) |
0 | 0.085 |
1 | 0.160 |
2 | 0.311 |
3 | 0.274 |
4 | 0.123 |
5 | 0.047 |
What is the expected number of times a patient will ring the nurse during a 12-hour shift? You must show all work to receive credit for this problem. Simply giving providing a numerical value will
What is the standard deviation of the distribution given above? You must show all work to receive credit for this problem. Simply giving providing a numerical value will not receive full credit.
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