Key terms

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The key terms include the basic concepts and definitions.

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M

Mean

Mean - is the average of all values in a distribution.

Median

Median - is the positional average that divides a distribution into two equal parts so that one half of items falls above it and the other half below it. The midpoint of a distribution of values is called the median.

Mode

Mode - is  the  most  frequently  occurring  value  in the  set  of  scores.