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2.5 The measures of central tendency

Represent the center point or typical value of a dataset.

Mean(average)

Median

Mode

The most common of the measures of central tendency. It is the sum of the values divided by the total

A number that separates ordered data into halves; half the values are the same number or smaller than the median and half the values are the same number or larger than the median.

The value that appears most frequently in a set of data

A data set with two modes is called bimodal.

Sampling Distributions and Statistic of a Sampling Distribution

Is a probability distribution of a statistic that is obtained through repeated sampling of a specific population.

Grouped Frequency Tables

Mean

Mode

Median