Demystifying - Averages from tables review

Drills

Finding averages from frequency tables and estimating the mean of grouped data.

Author note — to cover
  • Fluency — mean, median and mode from ungrouped frequency tables, with value-times-frequency totals that divide exactly (4 questions).
  • Grouped data — the modal class, the class containing the median, and estimated means from midpoints that come out exactly (4 questions).
  • The classic traps — single-choice questions catching division by the number of rows, and the largest frequency read as the mode (4 questions).

The test

—coming soon—

Where to go next

This mixed review uses the methods from these learning pages: