Grade 8 data and probability test
This Grade 8 worksheet practices grade 8 data and probability test (Common Core 8.SP.A.1, 8.SP.A.2; Alberta Statistics and Probability 1).
12 questions on Grade 8 data and probability, each skill asked once, with an answer key.
12 problems · answer key on the last page · each version has different numbers · Print from the browser
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On this sheet
- A line of fit for plant height y, in cm, against age x, in weeks, is y = 3x + 2. The data covers plants from 1 to 8 weeks old. What height, in cm, does the line predict for a plant 7 weeks old? — answer: 23
- In a game, a player rolls a fair number cube. Rolling a 6 scores 3 points, and any other roll scores 0 points. Over many rolls, about how many points does a player score per roll, on average? — answer: 0.5
- A report says a new soap raises the risk of a skin rash by 100%. Before, 8 of every 100,000 users got a rash. Is this a large change in practical terms? — answer: No: only 8 more of every 100,000 users get a rash
Questions teachers ask
- How many problems are on this worksheet?
- 12 on one page, with the answer key on the last page.
- What grade and standard is it for?
- Grade 8. Common Core: 8.SP.A.1, 8.SP.A.2. Alberta: Statistics and Probability 1.
- Can I print more than one version?
- Yes. Every version has different numbers and its own answer key. Use “Make another version” for a new one; the same version always prints the same.
- How are the tests built?
- One question for each skill of the unit, chosen from the type that shows the skill best. A new version asks the same skills with different numbers.
- Can I use these for placement?
- An end-of-year test from the grade before shows what a student brings with them. For a placement that finds each student's level skill by skill, use the placement check in Axis.
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