Assume that random guesses are made for six multiple choice questions on an SAT test, so...

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math Statistics-And-Probability

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Answer 1

Answer #1

This is a binomial distribution with parameters:

n = 6, p = 0.45

Hence,

P(Fewer than 4)

= binom.dist(3, 6, 0.45, True) [Excel Formula]

= 0.7447

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Answer 2

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