(Solution Library) In a certain town, 20% of adults have a college degree. The accompanying table describes the probability distribution for the number of
Question: In a certain town, 20% 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. Find the standard deviation for the prob. Distribution.
X P(x)
0 0.4096
1 0.4096
2 0.1536
3 0.0256
4 0.0016
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