SOLUTION: What is the probability that 6 rolls of a fair die will show four exactly 2 times? According to a college survey 22% of all students work fulltime. Find the mean for

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Question 465878: What is the probability that 6 rolls of a fair die will show four exactly 2 times?






According to a college survey 22% of all students work fulltime. Find the mean for the random variable x the number of students who work full time in the sample is 16.

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
b)
mean(x)
=np
=16*.22
=3.52
.
Ed