SAT Math: Read a scatterplot and identify individual data points
29+ practice questions in Praczo
The concept, explained
- 1
Each point on a scatterplot represents one observation with an x-value and a y-value. Read the axes and units first.
- 2
To find a specific point, locate its x-value on the horizontal axis and its y-value on the vertical axis.
- 3
Watch for clusters, outliers, and gaps — they often matter in questions asking about patterns.
- 4
Check whether the plot uses linear or logarithmic scales; this affects how you read distances between points.
- ✗ Swapping the x and y axes when reading a point.
- ✗ Misreading the scale (e.g., each gridline represents 5 but you read it as 1).
SAT-style practice
A scatterplot shows 20 students' hours studied (x-axis) vs. test score (y-axis). One point is located at x = 6, y = 88. What does this point represent?
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