Statistics Solutions

Solution: Find the mean of the given probability distribution. In a certain town, 30% of adults have a college degree. The accompanying table describes

Question: Find the mean of the given probability distribution.

In a certain town, 30% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree.

X p
0 0.2401
1 0.4116
2 0.2646
3 0.0756
4 0.0081

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