Residuals Quiz
10 questions · easy to harder · Statistics · score and step-by-step answers
How it works
- 10 questions, about 30 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 2 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Line of best fit y = 2x + 1, point (3, 8), find the residualType the answer.
2 Question 2
Line of best fit y = 3x − 2, point (4, 7), find the residualType the answer.
3 Question 3
Line of best fit y = x + 4, point (2, 9), find the residualType the answer.
4 Question 4
Line of best fit y = 2x + 3, point (5, 10), find the residualType the answer.
5 Question 5
Line of best fit y = 0.5x + 3, point (4, 6), find the residual- A) 5
- B) 0.1
- C) 1
- D) 10
6 Question 6
Line of best fit y = 1.5x + 2, point (4, 9), find the residualType the answer.
7 Question 7
Line of best fit y = 3x + 5, point (2, 13), find the residualType the answer.
8 Question 8
Line of best fit y = 0.5x + 1, point (6, 2), find the residualType the answer.
9 Question 9
Line of best fit y = 2.5x, point (2, 7), find the residual- A) 0.2
- B) 20
- C) 2
- D) 5
10 Question 10
Line of best fit y = −x + 6, point (1, 3), find the residualType the answer.