Grade 8 · Statistics & Probability
Scatter plots & bivariate data
176 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
In a class two-way table, the pet-owner row shows that 7 of the 20 students who own a pet also play a school sport, and the other 13 do not. What is the relative frequency of playing a sport among pet owners? Give your answer as a fraction in simplest form.
Warm-up
In a class two-way table, the pet-owner row shows that 12 of the 18 students who own a pet also play a school sport, and the other 6 do not. What is the relative frequency of playing a sport among pet owners? Give your answer as a fraction in simplest form.
Warm-up
In a class two-way table, the pet-owner row shows that 9 of the 27 students who own a pet also play a school sport, and the other 18 do not. What is the relative frequency of playing a sport among pet owners? Give your answer as a fraction in simplest form.
Problems shown under their original terms: Generated (template, solver-computed).
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