Of all the Harry Potter books purchased in a recent year,about 60% were purchase
ID: 2939774 • Letter: O
Question
Of all the Harry Potter books purchased in a recent year,about 60% were purchased for readers 14 or older. If 12 HarryPotter fans who bought books that year are surveyed, find thefollowing probabilities. a. At least five of them are 14 or older. b. Exactly nine of them are 14 or older. c. Less than three of them are 14 or older.
Of all the Harry Potter books purchased in a recent year,about 60% were purchased for readers 14 or older. If 12 HarryPotter fans who bought books that year are surveyed, find thefollowing probabilities. a. At least five of them are 14 or older. b. Exactly nine of them are 14 or older. c. Less than three of them are 14 or older.
Explanation / Answer
It says in the question that 12 people are surveyed
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