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  • Frequency measures include: * Count, Percent, and Frequency.
  • Central Tendency Measures: * Mean, Median, and Mode are three different terms for the same thing.
  • Dispersion or Variation Measures :* Standard Deviation, Variance, and Range
  • Positional measurements: * Quartile Ranks, Percentile Ranks.

The frequency distribution, central tendency, and variability of a dataset are the three primary categories of descriptive statistics.

Descriptive statistics are used to meaningfully and usefully describe or summarise data. Knowing that all of the participants in our case wore blue shoes, for example, would be useless. However, it would be useful to know how evenly their anxiety levels were distributed.

Descriptive statistics can be used for two things: providing basic information about variables in a dataset and highlighting potential correlations between variables. The three most frequent descriptive statistics, which can be seen visually or pictorially, are: Methods that are graphical or pictorial.

There are two types of descriptive statistics:

  • Central Tendency Measures (Mean, Median, and Mode).
  • Dispersion or Variation Measures (Variance, Standard Deviation, Range).

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