SME
Grade 8 Math · Problem type
Two variables, one bar each
Use this for “Six players’ assists and points: make the plot and describe the trend.”
Record and look
9
16
22
31
37
45
5
10
15
20
25
30
5
10
15
20
25
30
Score (points)
9
16
22
31
37
45
Points rise with assists: about 1.4 points per assist, a strong positive association.
Tap a bar at the height you want.
Assumptions
•
Each column is one player’s assists; the bar is that player’s score in points.
•
Read the tops of the bars left to right: do they rise, fall or stay level?
•
Change the bars to try another team.
Topic check
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