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It is estimated that 10% of those students who take the quantitative methods part of the...

It is estimated that 10% of those students who take the quantitative methods part of the CPA exam will fail this section. This Saturday there will be 60 students in the exam:
a. How many would you expect to fail? What is the standard deviation?
b. What is the probability that exactly two students fail?
c. What is the probability that at least two students fail?
Math   Statistics-And-Probability   
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