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Describe the association in a scatter plot from data

Grade 8 math · Fieldbook Learning

Name ______________________ Date __________

Look at how y changes as x increases. Write positive, negative or none.

  1. A scatter plot shows age of a car (x) and its price (y) for these points: (1, 54), (5, 42), (5, 47), (9, 35), (9, 32), (12, 26), (13, 18). Is the association positive, negative or none? Write positive, negative or none.
  2. A scatter plot shows temperature (x) and ice creams sold (y) for these points: (1, 54), (5, 48), (6, 39), (9, 33), (11, 30), (11, 28), (15, 17). Is the association positive, negative or none? Write positive, negative or none.
  3. A scatter plot shows temperature (x) and ice creams sold (y) for these points: (2, 57), (4, 49), (7, 40), (9, 31), (10, 33), (12, 24), (13, 24). Is the association positive, negative or none? Write positive, negative or none.
  4. A scatter plot shows hours of sleep (x) and minutes to fall asleep (y) for these points: (2, 7), (4, 6), (7, 17), (7, 13), (11, 23), (11, 19), (14, 31). Is the association positive, negative or none? Write positive, negative or none.
  5. A scatter plot shows hours of sleep (x) and minutes to fall asleep (y) for these points: (2, 55), (4, 51), (7, 44), (8, 44), (9, 39), (12, 34), (15, 27), (17, 25). Is the association positive, negative or none? Write positive, negative or none.
  6. A scatter plot shows hours studied (x) and test score (y) for these points: (1, 32), (4, 7), (7, 15), (7, 31), (11, 8), (12, 5), (14, 13), (17, 26). Is the association positive, negative or none? Write positive, negative or none.
  7. A scatter plot shows shoe size (x) and height (y) for these points: (2, 11), (4, 24), (6, 9), (9, 22), (10, 13), (11, 11), (14, 33), (15, 13). Is the association positive, negative or none? Write positive, negative or none.
  8. A scatter plot shows shoe size (x) and height (y) for these points: (2, 32), (5, 7), (6, 25), (9, 18), (9, 8), (12, 22), (13, 18), (16, 18). Is the association positive, negative or none? Write positive, negative or none.
  9. A scatter plot shows age of a car (x) and its price (y) for these points: (2, 9), (5, 21), (5, 18), (8, 35), (10, 37), (11, 45), (13, 53), (16, 67), (18, 74). Is the association positive, negative or none? Write positive, negative or none.
  10. A scatter plot shows hours studied (x) and test score (y) for these points: (2, 6), (4, 12), (6, 17), (9, 26), (10, 32), (13, 38), (13, 38), (15, 48), (19, 59). Is the association positive, negative or none? Write positive, negative or none.
  11. A scatter plot shows hours of sleep (x) and minutes to fall asleep (y) for these points: (1, 6), (4, 14), (6, 26), (8, 31), (10, 37), (12, 49), (15, 63), (15, 59), (18, 70). Is the association positive, negative or none? Write positive, negative or none.
  12. A scatter plot shows temperature (x) and ice creams sold (y) for these points: (2, 9), (5, 14), (7, 23), (9, 29), (11, 33), (11, 30), (15, 42), (15, 45), (17, 51). Is the association positive, negative or none? Write positive, negative or none.
  13. A scatter plot shows shoe size (x) and height (y) for these points: (1, 26), (5, 15), (7, 30), (9, 28), (9, 7), (12, 35), (13, 33), (16, 22), (17, 25), (19, 17). Is the association positive, negative or none? Write positive, negative or none.
  14. A scatter plot shows hours of sleep (x) and minutes to fall asleep (y) for these points: (3, 5), (4, 11), (5, 9), (8, 18), (11, 22), (13, 24), (13, 29), (16, 32), (17, 33), (21, 42). Is the association positive, negative or none? Write positive, negative or none.
  15. A scatter plot shows shoe size (x) and height (y) for these points: (1, 4), (4, 9), (5, 14), (9, 30), (10, 29), (13, 40), (15, 44), (15, 43), (18, 53), (20, 58). Is the association positive, negative or none? Write positive, negative or none.
  16. A scatter plot shows hours studied (x) and test score (y) for these points: (3, 12), (4, 13), (5, 20), (7, 28), (11, 43), (13, 55), (14, 54), (17, 65), (17, 67), (19, 74). Is the association positive, negative or none? Write positive, negative or none.
  17. A scatter plot shows shoe size (x) and height (y) for these points: (3, 55), (4, 53), (6, 48), (7, 44), (11, 40), (12, 39), (13, 35), (16, 25), (17, 23), (21, 21), (23, 11), (24, 13). Is the association positive, negative or none? Write positive, negative or none.
  18. A scatter plot shows hours studied (x) and test score (y) for these points: (3, 9), (3, 7), (6, 15), (7, 18), (9, 24), (13, 38), (14, 39), (16, 45), (18, 55), (19, 60), (22, 63), (24, 71). Is the association positive, negative or none? Write positive, negative or none.
  19. A scatter plot shows temperature (x) and ice creams sold (y) for these points: (3, 15), (5, 22), (7, 26), (7, 31), (9, 34), (13, 52), (13, 51), (16, 64), (17, 66), (20, 77), (23, 92), (23, 95). Is the association positive, negative or none? Write positive, negative or none.
  20. A scatter plot shows hours of sleep (x) and minutes to fall asleep (y) for these points: (1, 57), (4, 50), (6, 46), (8, 47), (9, 42), (12, 35), (13, 35), (17, 25), (19, 20), (20, 18), (23, 13), (25, 12). Is the association positive, negative or none? Write positive, negative or none.
More free practice: fieldbooklearning.com/ca/practice/grade-8/describe-the-association-in-a-scatter-plot-from-data/

Answer key: Describe the association in a scatter plot from data

  1. negative
  2. negative
  3. negative
  4. positive
  5. negative
  6. none
  7. none
  8. none
  9. positive
  10. positive
  11. positive
  12. positive
  13. none
  14. positive
  15. positive
  16. positive
  17. negative
  18. positive
  19. positive
  20. negative