It has been estimated that about 20% of people between the ages of 18 and 25 hav

Question

It has been estimated that about 20% of people between the ages of 18 and 25 have uses marijuana in the last year. Which of the following is CORRECT about this statement? a. Five people of this age group were randomly selected. This means that exactly one of them must have used marijuana in the last year. b. Twenty people were randomly selected form this age group. Eighteen of them use marijuana in the last year. The next person selected at random will have a lower probability of using marijuana. c. Ten people were randomly selected from this age group. None of them have used marijuana in the last year. The next person selected must have a higher probability of using marijuana in the last year. d. A thousand people from the age group were randomly selected It is not unusual to find that 217 of them have used marijuana in the last year e. A million people from this age group were randomly selected There must be exactly 200,000 of them that have used marijuana in the last year.

Explanation / Answer

d) A thousand people from the age group were randomly selected. It is not unusual to find that 217 of them have used marijuana in the last year.

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