SOLUTION: Over the past ten years, departmental records indicate 30% of the students who schedule a particular class withdraw from that class before the end of the semester. If 25 students s

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Question 867232: Over the past ten years, departmental records indicate 30% of the students who schedule a particular class withdraw from that class before the end of the semester. If 25 students scheduled this particular class, what is the probability that more than 7 but no more than 10 students withdraw from the class?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

p(WD) = .30,  n = 25

P(7 < x ≤10) = binomcdf(25, .30, 10) - binomcdf(25, .30, 7) = .9022 -  .5118