8:46 PM webwork.syr.edu l Verizon LTE ?18% MATHEMATICAL ASSOCIATION OF AMERICA L

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8:46 PM webwork.syr.edu l Verizon LTE ?18% MATHEMATICAL ASSOCIATION OF AMERICA Logged in as ravanwie.Lo Out C > webwork / mat 221_spring 2018 / ch5_sec3 /5 Ch5 Sec3: Problem 5 Previous Problem List Next (1 point) A quiz consists of 10 multiple-choice questions, each with 5 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 60 %. P(pass) Preview My Answers Submit Answers You have attempted this problem 0 times. You have unlimited attempts remaining. Email instructor Page generated at 04/03/2018 at 08:46pm EDT

Explanation / Answer

P(Correct answer for any question) = 1/5 = 0.20

Hence,

P(Pass)

= P(Get 60% or more)

= P(6 or more correct out of 10)

= 1 - P(Less than or equal to 5 correct out of 10)

= 1 - binomdist(5, 10, 0.20, TRUE) [Excel Formula]

= 0.006369

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