What is the mode of the following set of numbers: 3, 5, 2, 7, 5, 8, 5, 2?

A) 2

B) 3

C) 5

D) 7

E) 8

If you flip a fair coin three times, what is the probability of getting exactly two heads?

A) 1/2

B) 1/4

C) 3/8

D) 1/8

In a normal distribution, what is the z-score for a data point that is one standard deviation above the mean?

A) 0

B) 1

C) -1

D) 2

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