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Mathematics, 07.04.2020 16:05 kutubmia
A company is studying the number of monthly absences among its 125 employees. The following probability distribution shows the likelihood that people were absent 0, 1, 2, 3, 4, or 5 days last month.
Picture # of days absent
Probability
0 0.60
1 0.20
2 0.12
3 0.04
4 0.04
5 0
What is the variance of the number of days absent?
a. 1.1616
b. 55.52
c. 5.00
d. 1.41
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