Mathematics · Statistics
Which of the following statements is true regarding the properties of arithmetic mean?
- 1The sum o f deviations of the items from the arithmetic mean is always zer o.✓
- 2The sum of deviations of the items from the arithmetic mean is always one.
- 3Arithmetic mean is the sum of deviations from the mid value.
- 4The sum of the squared deviations of the items from the arithmetic mean is maximum.
Correct answer
The sum o f deviations of the items from the arithmetic mean is always zer o.
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