Comparing distributions and drawing conclusions
Pages
Outliers
Spotting a value far from the rest, and whether it is an error or genuine.
Comparing data sets with an average and the range
A fair comparison pairs an average with a measure of spread, both in context.
Describing a population with statistics
Using sample statistics to describe the population, and the caveats they carry.
The limits of a conclusion
What a data set cannot show: small samples, bias and overreaching claims.
Comparing distributions with box plots
Comparing medians and interquartile ranges read from two box plots, in context.
Practice
Practice
Outliers
Spotting a value far from the rest, and whether it is an error or genuine.
PracticeComparing data sets with an average and the range
A fair comparison pairs an average with a measure of spread, both in context.
PracticeComparing data sets review
Averages, spread and the conclusions they support.