Texas Education Agency
Texas Gateway: Tea Statistics: Measures of the Spread of the Data
This resource explains the different measures of center, variability, etc. that are used to describe the spread of statistical data. Includes examples and practice exercises.
National Council of Teachers of Mathematics
Nctm: Comparing Properties of the Mean and Median
Through the use of technology, students can investigate how the mean and median of a set of date compares when values the data changes.
Illustrative Mathematics
Illustrative Mathematics: S Id.1,2,3 Speed Trap
A statistically-minded state trooper wondered if the speed distributions are similar for cars traveling northbound and for cars traveling southbound on an isolated stretch of interstate highway. Students will use the data collected by...
PBS
Pbs: The Lowdown: Indoor/outdoor Residential Water Use in California
Compare data about indoor and outdoor residential water use in northern and southern sites in this infographic from KQED and the California Single Family Water Use Efficiency Study. The accompanying classroom activity helps students find...