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A company is studying the number of monthly absences among its 125 employees. The following probability...

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.

Number of days absent   Probability

0   0.5

1   0.2

2   0.15

3   0.1

4   0.04

5     0.01

Is this a probability distribution? Why? What is the random variable? What is the probability that a randomly selected employee were absent for more than 3 days? What is the probability that a randomly selected employee were absent for at least 3 days?


Math   Statistics-And-Probability   
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