Adults and high school students were asked four trivia questions. The number of

Question

Adults and high school students were asked four trivia questions. The number of correct answers given by each participant was recorded. To the right is a table showing the results. Complete parts a) through e) ant at random, what's the probability we choose an adult who had one correct answer? a) If we select a particip (Round to three decimal places as needed ) b) Among the participants who had one correct answer, what is the probability the person is an adut? Round to three decimal places as needed) c) What is the probability that an adult participant had one correct answer? Round to three decimal places as needed ) d) What is the probability that a student participant had no correct an swers? Round to three decimal places as needed ) o) What is the probability that a participant with no correct answers is a student? (Round to three decimal places as needed )

Explanation / Answer

Part a )

P( adult who had correct answer ) = Total number of adult who had correct answer / Total number of adult

P( adulst who had correct answer ) = 34 / 165 = 0.206

Part b )

P( adult / who had correct answer ) = Number of adult who had correct answer / Total number of correct answer

P( adult / who had correct answer ) = 34 / 46 = 0.739

Part C)

P( adult participant had correct answer ) = Number of adult had correct answer / Total number of participants

P( adult participant had correct answer ) = 34 / 318 = 0.107

Part d )

P( student participant had no correct answer ) = Number of student had no correct answer / Total number of participant

P( student participant had no correct answer ) = 48 / 318 = 0.151

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