Back to Statistics and Probability — Problem 6 · Task Set 29

7.SP Tutor Intake — Statistics and Probability

This short check helps your tutor understand where to start. Answer each question without help. If you're not sure, give your best try — the goal is to find what to work on together, not to grade you.

Grade 7·14 problems·~22 min·Common Core Math - Grade 7·domain·7-sp

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Concepts

A spinner has 4 sections. A student assigns the following
probabilities: section 1 = 0.3, section 2 = 0.4, section 3 = 0.2,
section 4 = 0.2. Is this a valid probability model?

Yes — each probability is between 0 and 1.

No — the probabilities sum to 1.1, which exceeds 1.

No — a spinner must use a uniform model.

Yes — the model is valid because no probability is negative.