AI generatedStatisticsKey Stage 3

Plotting a scatter graph

Plotting a scatter graph.

  • Plot paired observations as separate crosses. Do not join the points.
  • A best-fit line follows the overall trend, with points balanced around it.
  • Predictions are estimates. Extrapolation is less secure, and correlation alone does not establish causation.

Example 1

Plot a scatter graph for the paired data. Do not join the points.

Given information
Score
121.0
220.5
321.0
422.5
523.0
622.5
723.0
824.5
Each row gives one paired observation. Plot one cross per pair.
Label both axes and use consistent scales. Keep the points separate.
Coordinate graph1234567891011510152025300

Example 2

Plot a scatter graph for the paired data. Do not join the points.

Given information
Score
119.5
217.5
316.5
416.5
515.5
613.5
712.5
812.5
Each row gives one paired observation. Plot one cross per pair.
Label both axes and use consistent scales. Keep the points separate.
Coordinate graph12345678910115101520250

Your turn

Question 1

Plot a scatter graph for the paired data. Do not join the points.

Given information
Score
122.0
222.5
324.0
426.5
528.0
628.5
730.0
832.5
Check answer
Each row gives one paired observation. Plot one cross per pair.
Label both axes and use consistent scales. Keep the points separate.
Coordinate graph123456789101151015202530350
Question 2

Plot a scatter graph for the paired data. Do not join the points.

Given information
Score
121.0
219.5
319.0
419.5
519.0
617.5
717.0
817.5
Check answer
Each row gives one paired observation. Plot one cross per pair.
Label both axes and use consistent scales. Keep the points separate.
Coordinate graph12345678910115101520250
Question 3

Plot a scatter graph for the paired data. Do not join the points.

Given information
Score
122.5
222.5
323.5
425.5
526.5
626.5
727.5
829.5
Check answer
Each row gives one paired observation. Plot one cross per pair.
Label both axes and use consistent scales. Keep the points separate.
Coordinate graph123456789101151015202530350
Question 4

Plot a scatter graph for the paired data. Do not join the points.

Given information
Score
120.0
217.5
316.0
415.5
514.0
611.5
710.0
89.5
Check answer
Each row gives one paired observation. Plot one cross per pair.
Label both axes and use consistent scales. Keep the points separate.
Coordinate graph12345678910115101520250
Question 5

Plot a scatter graph for the paired data. Do not join the points.

Given information
Score
123.0
222.5
323.0
424.5
525.0
624.5
725.0
826.5
Check answer
Each row gives one paired observation. Plot one cross per pair.
Label both axes and use consistent scales. Keep the points separate.
Coordinate graph1234567891011510152025300
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