Summary of Comparing Quantitative Distributions: 3E

This page would contain resource information like a glossary of terms from the section, key equations, and a reminder of concepts that were covered.

Essential Concepts

  • When describing and summarizing data, the shape of a distribution will need to be frequently described and compared to the center and spread of the distribution of a quantitative variable. The determination of the presence of outliers will also be helpful in summarizing the data.

Glossary

observational units
individuals or items whose characteristics we are interested in.
variables
the characteristics we record on the observational units. These may be quantitative or categorical variables.

Put formal DCMP I Can statements to prepare for the self-check.

These I Can Statements are new (the first one is the “you will understand” rephrased as an I Can):

  • I can use histograms and dotplots to compare distributions of a quantitative variable across groups.
  • I can compare the center, shape, and spread of distributions of a quantitative variable across groups.