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A professor is giving a T/F test in your history class. Statistics show students who don't study for test but attend class have a 60% chance of getting the answers correct.  The test is 20 problems and student didn't study.  (Hint: Binomial Distribution)

a) What are the odds a student gets more than 14 problems correct?

b) What are the odds a student gets exactly 12 problems correct?

c) What are the odds a student gets an A (19 or 20 problems correct)?

d) What are the odds the student gets a D or E (less than 14 problems correct)?

e) If the probability of a student getting an answer correct on the same 20 problem test increases to 62%, what are the odds a student gets exactly 12 problems correct?

Statistics and Probability, Statistics

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