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The following data set represents students' scores on a quiz. The best possible score was a...

The following data set represents students' scores on a quiz. The best possible score was a 20. Use the data to generate answers to the next eight (8) questions (Q28-Q35).

4, 4, 10, 12, 2, 20, 5, 12, 12, 5, 9, 9, 20, 13, 6, 6, 15, 15, 15, 15

What is the mean? (Round all answers for this question to the hundredths place - X.XX)

What is the median?

What is the mode?

What is the range?

What is the variance?

What is the standard deviation?

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