Grade 7 · Statistics & Probability
Sampling & inference
132 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
The probability that a game spinner lands on green is . Malik spins it 120 times. Predict how many of those spins land on green.
Warm-up
The probability that a game spinner lands on green is . Malik spins it 80 times. Predict how many of those spins land on green.
Warm-up
The probability that a game spinner lands on green is . Malik spins it 40 times. Predict how many of those spins land on green.
Problems shown under their original terms: Generated (template, solver-computed).
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