Mathematics·Data & Statistics·procedural
Comparing measurements
Describe, interpret, and compare distributions of a single variable using appropriate measures of central tendency (mean, median, mode) and spread (range), including the effect of outliers
Suggested ages 11–13
Evidence of understanding
- Calculate mean, median, and mode for a data set and explain when each is most appropriate
- Find the range of a data set and explain how an outlier affects the mean versus the median
- Compare two data sets using their averages and ranges to draw conclusions
Assessment prompt
If Comparing measurements had the test scores of a whole class, could they find the mean, median, and range, and explain what each tells you about how the class performed?
Standards alignment
7.SP.3US · ccss-math
Informally assess the degree of visual overlap of two numerical data distributions
Common Core State Standards for Mathematics · 7
7.SP.4US · ccss-math
Use measures of center and measures of variability to draw informal comparative inferences
Common Core State Standards for Mathematics · 7
KS3.Maths.Stat.1GB · uk-nc-2013
Describe and Compare Distributions
The national curriculum in England: Key stages 1 and 2 framework document · Key Stage 3