Curriculum placement
Grade 7. This describes the skill, not a learner estimate.
Median and spread of signed data
Calculate exact median range and interquartile range of signed numerical data
Problem types
- Median of data
- Range of data
- Interquartile range
- Find the upper or lower quartile of a listed data set
Builds on
Leads to
- Comparing two data distributions · Extend the idea
Median and interquartile range are used to compare two data sets by their centers and spreads.
- Samples and the populations they represent · See it applied
The median of a sample estimates the center of a population, and the sample spread shows how variable that estimate is.
- Comparing center, spread, and shape · Extend the idea
Median and range of one data set extend to comparing groups, including how outliers move the center.
Related skills
- Solving absolute-value equations · Shared foundations
- Circumference and area of a circle · Shared foundations
- Fluent decimal arithmetic · Shared foundations
- Dot plots, histograms, and box plots · Shared foundations
- Laws of exponents · Shared foundations
Open the interactive map to explore lessons and skill connections.