What is the expected value? a. 2.79 O b. 1.97 O c. 2.97 o d. 1.79 How should the expected value be interpreted?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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10 11

For nos. 10-13, refer to the situation below.
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.
0.25
031
0.14
What is the expected value?
o a. 2.79
o b. 1.97
O c. 2.97
o d. 1.79
How should the expected value be interpreted?
a. The average post-op patient will ring the nurse every
hour during a 12-hour shift.
ob.
The average post-op patient will ring the nurse 2 to 3
times during a 12-hour shift.
o . The average post-op patient will never ring the nurse
during a 12-hour shift.
o d. The average post-op patient will ring the nurse 3 to 4
times during a 12-hour shift.
Transcribed Image Text:For nos. 10-13, refer to the situation below. 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. 0.25 031 0.14 What is the expected value? o a. 2.79 o b. 1.97 O c. 2.97 o d. 1.79 How should the expected value be interpreted? a. The average post-op patient will ring the nurse every hour during a 12-hour shift. ob. The average post-op patient will ring the nurse 2 to 3 times during a 12-hour shift. o . The average post-op patient will never ring the nurse during a 12-hour shift. o d. The average post-op patient will ring the nurse 3 to 4 times during a 12-hour shift.
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