What is the mean deviation of x, 2x, x+1 and 3x. If their mean is...
MATHEMATICS
JAMB 2009
What is the mean deviation of x, 2x, x+1 and 3x. If their mean is 2?
- A. 0.5
- B. 1.0
- C. 1.5
- D. 2.0
Correct Answer: A. 0.5
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