A selection of soft-drink users is asked to taste two disguised soft drinks and indicate which they

Question:

A selection of soft-drink users is asked to taste two disguised soft drinks and indicate which they prefer.

The file titled Challenge contains the results of a study that was conducted on a college campus.

a. Determine the probability that a randomly chosen student prefers Pepsi.

b. Determine the probability that one of the students prefers Pepsi and is less than 20 years old.

c. Of those students who are less than 20 years old, calculate the probability that a randomly chosen student prefers (1) Pepsi and (2) Coke.

d. Of those students who are at least 20 years old, calculate the probability that a randomly chosen student prefers (1) Pepsi and (2) Coke.

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