Back to Informally assess the degree of visual overlap of two numerical data distributions — Problem 1 · Task Set 37

7.SP.B.3 Tutor Intake -- Comparing Two Data Distributions

This short check helps your tutor see where to start. Work on your own,
without a calculator. If you're unsure, give your best try — the goal is
to find what to work on together, not to grade you.

Grade 7·8 problems·~12 min·Common Core Math - Grade 7·standard·7-sp-b-3

Work through problems with immediate feedback

Concepts

Team A's dot plot and Team B's dot plot are drawn on the same
number line. A few values from Team A and a few from Team B land
on the exact same point on the line. What can you correctly
conclude?

Some individual values overlap, but the two distributions as a whole could still be centered in different places

Since some values match, the two distributions are basically the same

The two teams must have identical means

Overlap at a few points means there is no separation at all between the groups