Grade 6 · Statistics & Probability

Data & graphs

123 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

Warm-up
A bar graph shows the number of books four students read last month: Amy read $9$ books, Ben read $20$ books, Cara read $10$ books, and Dan read $23$ books. What is the difference between the greatest number of books read and the least number of books read?
Warm-up
A bar graph shows the number of books four students read last month: Amy read $5$ books, Ben read $20$ books, Cara read $29$ books, and Dan read $30$ books. What is the difference between the greatest number of books read and the least number of books read?
Warm-up
A bar graph shows the number of books four students read last month: Amy read $10$ books, Ben read $15$ books, Cara read $23$ books, and Dan read $30$ books. What is the difference between the greatest number of books read and the least number of books read?

Problems shown under their original terms: Generated (template, solver-computed).

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See every Statistics & Probability skill for grade 6