Line of best fit Quiz
Name: ______________________ Date: __________ Score: ____ / 10
10 questions. Calculator allowed. Show your working. steplyclass.com/statistics/line-of-best-fit/quiz/
1
Line of best fit (1, 2) (2, 4) (3, 5) (4, 4) (5, 7)Answer: ____________________
2
Line of best fit (1, 2) (2, 4) (3, 5) (4, 4) (5, 7), predict x = 7Answer: ____________________
3
Line of best fit (1, 9) (2, 7) (3, 7) (4, 4) (5, 3)Answer: ____________________
4
Line of best fit (1, 8) (2, 9) (3, 8) (4, 5) (5, 3), predict x = 6Answer: ____________________
5
Line of best fit (1, 10) (2, 13) (3, 12) (4, 16)Answer: ____________________
6
Line of best fit (1, 3) (3, 6) (5, 10) (7, 10) (9, 12), predict x = 11Answer: ____________________
7
Line of best fit (1, 5) (2, 8) (3, 8) (4, 11) (5, 13), predict x = 7Answer: ____________________
8
Line of best fit (10, 19) (20, 26) (30, 38) (40, 46) (50, 59), predict x = 60Answer: ____________________
9
Line of best fit (1, 5) (2, 7) (3, 1) (4, 0) (5, 0)Answer: ____________________
10
Line of best fit (10, 50) (20, 45) (30, 42) (40, 30) (50, 28), predict x = 60Answer: ____________________
Answer key
- y = x + 1.4
- y = x + 1.4
- y = −1.5x + 10.5
- y = −1.4x + 10.8
- y = 1.7x + 8.5
- y = 1.1x + 2.7
- y = 1.9x + 3.3
- y = x + 7.6
- y = −1.7x + 7.7
- y = −0.59x + 56.7
Every answer solved step by step: steplyclass.com/statistics/line-of-best-fit/quiz/answers/