Moderate
What is the mean of the data set {2, 4, 6, 8, 10}?
Correct answer: C. 6
- A. 4
- B. 5
- C. 6
- D. 7
Explanation
Add the five values and divide by their count: (2 + 4 + 6 + 8 + 10) / 5 = 30 / 5 = 6. The values are symmetrically centered at 6, which also provides a quick check.
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