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Q. The sum of deviations of observations from their arithmetic mean:
Q. If each observation of the data is increased by 5, then what happens to its mean?
Q. In quality control of manufactured items, the most common measure of dispersion is:
Q. Index number for base year is always considered as------
Q. Since the mode is the most frequently occurring data value, it
Q. Secular trend can be measured by:
Q. The degree of peaked ness or flatness of a unimodal distribution is called:
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