Line of best fit 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.
- 0 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 (1, 2) (2, 4) (3, 5) (4, 4) (5, 7)Type the answer.
2 Question 2
Line of best fit (1, 2) (2, 4) (3, 5) (4, 4) (5, 7), predict x = 7Type the answer.
3 Question 3
Line of best fit (1, 9) (2, 7) (3, 7) (4, 4) (5, 3)Type the answer.
4 Question 4
Line of best fit (1, 8) (2, 9) (3, 8) (4, 5) (5, 3), predict x = 6Type the answer.
5 Question 5
Line of best fit (1, 10) (2, 13) (3, 12) (4, 16)Type the answer.
6 Question 6
Line of best fit (1, 3) (3, 6) (5, 10) (7, 10) (9, 12), predict x = 11Type the answer.
7 Question 7
Line of best fit (1, 5) (2, 8) (3, 8) (4, 11) (5, 13), predict x = 7Type the answer.
8 Question 8
Line of best fit (10, 19) (20, 26) (30, 38) (40, 46) (50, 59), predict x = 60Type the answer.
9 Question 9
Line of best fit (1, 5) (2, 7) (3, 1) (4, 0) (5, 0)Type the answer.
10 Question 10
Line of best fit (10, 50) (20, 45) (30, 42) (40, 30) (50, 28), predict x = 60Type the answer.