Question: a and b please If a true-false test with 15 questions is given, what is the probability of scoring (A) Exactly 80% just by guessing?

a and b please

If a true-false test with 15 questions is given, what is the probability of scoring (A) Exactly 80% just by guessing? (B) 80% or better by just guessing? (A) P( exactly 80%) (Round to five decimal places as needed.)

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