Unit 23 : Measures of Central tendency and dispersion

Measures of Central Tendency and Dispersion. 1. Measure of central tendency: mean, median and mode from grouped and ungrouped data. For a set of data, we determine a quantity used to summarise the whole set of data. This quantity is termed a measure of central tendency. The most commonly used measures are mean, medium and mode. 1.1 mean. For ... ................
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