Use the Following Information to Answer the Question

Multiple Choice

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.
-Calculate the observed value of the chi- square statistic. Round to the nearest hundredth.

A) 19.18
B) 12.79
C) 6.39
D) 23.68