Use the following information to answer the question. Lambda olive oil is touted as the "World's most expensive olive oil." A twelve ounce bottle typically costs fifty dollars or more. In a blind taste test, a group of food experts tasted three premium olive oils, one of which was Lambda olive oil. When asked to pick the Lambda olive oil, 84 got it right and 87 got it wrong.
-If this group were just guessing, how many people (out of 171)would be expected to guess correctly?
A)57
B)Not enough information given to calculate expected value.
C)114
D)86

Question

Quizplus · Accepted Answer

If the group were just guessing, each person would have a 1 in 3 chance of picking the correct olive oil. Therefore, the expected number of correct guesses is 171 * (1/3) = 57.

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