Determine odds student gets more than 14 questions correct?, Ask an Expert

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Q1) Professor is giving T/F test in your history class. Statistics illustrate students who don't study for test but attend class have 60% chance of getting answers correct. Test is 20 questions and student didn't study.

a) Determine odds student gets more than 14 questions correct?

b) Determine the odds student gets exactly 12 questions correct?

c) Determine the odds student gets an A (19 or 20 questions correct)?

d) Determine the odds student gets a D or E (less than 14 questions correct)?

e) If probability of student getting answer correct on same 20 question test increases to 62%, determine the odds student gets exactly 12 questions correct?

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