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Grade 9 · Algebra 1

Probability & statistics

520 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.

  1. Warm-up

    A vending machine offers 3 kinds of chips, 6 kinds of candy bars, and 6 kinds of drinks. If a customer picks exactly one of each, how many different combinations of chips, candy bar, and drink are possible?

  2. Warm-up

    A vending machine offers 3 kinds of chips, 4 kinds of candy bars, and 6 kinds of drinks. If a customer picks exactly one of each, how many different combinations of chips, candy bar, and drink are possible?

  3. Warm-up

    A vending machine offers 5 kinds of chips, 6 kinds of candy bars, and 2 kinds of drinks. If a customer picks exactly one of each, how many different combinations of chips, candy bar, and drink are possible?

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

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See every Algebra 1 skill for grade 9