Te reo Māori terms
click each term to open in Te AkaLearning objective overview
Master Teaching Guide coverage for this objective.
Resources
- Beta: Scatter plot - TARSOG Skills in Ex 31.01, pg 579
- CorbettMaths worksheet on Scatter GraphsQuestions PDF · Answers
Terminology
- Bivariate Data
- Line of Best Fit (Trend line)
- Trend (Linear vs. Non-linear)
- Association (Positive vs. Negative)
- Relationship (Strong, Moderate, Weak)
- Scatter (Constant vs. Fanning)
- Outliers (Unusual points)
- Grouping (Clusters)
- Explanatory (independent) vs response (dependent) variable
- Interpolation vs extrapolation
Task goals
- Identify the explanatory (independent) and response (dependent) variable in a scatter plot's context.
- Describe the trend (linear/non-linear) and association (positive/negative) shown by the main cluster of points.
- Judge the strength of the relationship (weak/moderate/strong) from how closely points cluster around the line of best fit.
- Identify an outlier's coordinates and calculate how far its actual value departs from what the line of best fit predicts at that x-value.
- Use the line of best fit to predict a value, and correctly classify the prediction as interpolation (within the data range) or extrapolation (beyond it), explaining why extrapolated predictions are less reliable.
- Recognise when two distinct groupings exist in one scatter plot (via a key), and explain why a single combined line of best fit would be misleading.
Key skills
- Scatter plots
- Correlation
- Line of best fit
- TARSOG
Quick stats
- 81 total questions
- 3 difficulty levels
- Answers included
For teachers
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