emilysabedra emilysabedra

17-10-2022
Mathematics

contestada

Assume that random guesses are made for seven multiple choice questions on an SAT test, so that there are n=7 trials, each with probability of success (correct) given by p=0.6. Find the indicated probability for the number of correct answers.
Find the probability that the number x of correct answers is fewer than 4.

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