Moderate
Which of the measures given here are based on every item of the series (uses all observations)?
Correct answer: B. Standard Deviation
- A. Range
- B. Standard Deviation
- C. Quartile Deviation
- D. All of them
Explanation
Standard deviation uses every observation through the squared deviations from the mean. Range uses only the smallest and largest values, while quartile deviation depends mainly on the quartiles.
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