Data Interpretation and Probability · Data and Statistics

Comparing Data Sets

Using averages and measures of spread to compare two or more distributions.

Key Questions

  1. 1Why is the median sometimes a better representation of the center than the mean?
  2. 2What does the range or interquartile range tell us about the consistency of a data set?
  3. 3How can we use box plots to visually compare the spread of two different groups?

National Curriculum Attainment Targets

KS3: Mathematics - Statistics
Year: Year 9
Subject: Mathematics
Unit: Data Interpretation and Probability
Period: Data and Statistics

Suggested Methodologies

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