Why Is It Useful to Identify the Central Tendency of a Data

question 37

Short Answer

Why is it useful to identify the central tendency of a data set? Describe three measures of central tendency.

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Definitions:

Variability

A measure of the dispersion or spread of data points in a dataset, showing how much the data points differ from each other.

Sample Standard Deviations

A measure that quantifies the amount of variation or dispersion of a set of sample data values from the mean.

Test Statistic

A calculated value from sample data that is used in a hypothesis test to determine whether to reject the null hypothesis, based on some statistical model.

Confidence Limit

The range within which a population parameter is estimated to lie with a certain confidence level.