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A recent Pew Center Research survey revealed that 15% of American adults have used an online dating service. Suppose a statistician randomly selected 20 American

  1. A recent Pew Center Research survey revealed that 15% of American adults have used an online dating service. Suppose a statistician randomly selected 20 American adults.

(2 marks)

What is the probability that exactly 3 used an online dating service?

What is the probability that 5 or fewer used an online dating service?

What is the probability that 3 or more used an online dating service?

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