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A short statistics quiz consists of two multiple choice questions. Each question had four possible answer...

A short statistics quiz consists of two multiple choice questions. Each question had four possible answer choices (A, B, C, and D).

a. Make a list of the possible answer keys for the quiz or make a tree diagram for them.

b. How many possible answer keys are there?

c. If a student guesses at random for both questions, what is the probability they get both questions right?

d. What is the probability that C was not the correct answer to either question?

Math   Statistics-And-Probability   
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