Univariate data - measures of central tendency

Reason For Learning

An understanding of mean, median and mode (measures of central tendency) is important when interpreting survey data. Many published surveys vary the way they express 'averages' to best suit their cause. Can you see through their tricks? This learning bite will also give you the tools necessary to compare sets of data.

Learning Intention

Calculations of mean, median and mode of univariate (single category) data (do not include comparison of data sets - this is a separate learning bite)

Key Vocabulary Terms

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ACMSP171 Level 7

Calculate mean, median, mode and range for sets of data. Interpret these statistics in the context of data

ACMSP172 Level 7

Describe and interpret data displays and the relationship between the median and mean

ACMSP207 Level 8

Investigate the effect of individual data values, including outliers, on the mean and median