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What is meant by standard deviation? What are its main merits or characteristics? |
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Answer» Solution :Standard DEVIATION is the SQUARE ROOT of the arithmetic MEAN of the SQUARES of all deviations. Devations being measured from the arithmetic mean of the items. Merits :- 1. Based on all values. 2. A certain measure. 3. Little effect of a change in sample. 4. Algebraic Treatment. |
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