Question

18) A recent study indicates that Pepsi-Cola has a market share of 33.2% (versus 40.9% for...

18) A recent study indicates that Pepsi-Cola has a market share of 33.2% (versus 40.9% for Coca- Cola). A marketing research firm wants to conduct a new taste test for which it needs Pepsi drinkers. Potential participants for the test are selected by random screening of soft drink users to find Pepsi drinkers.
(a) What is the probability that the first randomly selected drinker qualifies as a Pepsi- Cola drinker?
(b) What is the probability that two soft drink users will have to be interviewed to find the first Pepsi drinker?

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Answer #1

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