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7th grade

Course: 7th grade > Unit 7

Lesson 4: Comparing and sampling populations

Reasonable samples
Valid claims
Making inferences from random samples
Comparing distributions with dot plots (example problem)
Comparing distributions

Comparing distributions

AP.STATS: UNC‑1 (EU), UNC‑1.N (LO), UNC‑1.N.1 (EK), UNC‑1.O (LO), UNC‑1.O.1 (EK) CCSS.Math: 7.SP.B.3, 7.SP.B.4, HSS.ID.A.2

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The Baltimore Ravens won the American football championship in 2013. In the same season, the Kansas City Chiefs had a record of 2 wins and 14 losses.

The dot plots below show the 40-yard dash times (in seconds) of the defensive backs on each team's roster. Defensive backs mainly defend against passes, and the 40-yard dash is the main measure of speed used in American football.

Which pieces of information can be gathered from these dot plots? (Remember that lower 40-yard dash times are faster.)

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7th grade

Course: 7th grade > Unit 7

Problem