Practice Scatter Plot in Math

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

A scatter plot is a graph with one quantitative variable on each axis where each data point is plotted as a dot, revealing relationships between the two variables.

Each dot is one observation — as you scan left to right, the up/down pattern of dots reveals whether the variables tend to increase or decrease together.

Example 1

easy
Given the data pairs (x, y): (1,2), (2,4), (3,5), (4,4), (5,6), describe how to create a scatter plot and identify the direction of the association.

Example 2

medium
A scatter plot of study hours (x) vs. test scores (y) shows points clustered tightly around an upward-sloping line. Describe the association in terms of direction, form, and strength. Then identify what an outlier would look like.

Example 3

easy
A scatter plot shows that as temperature increases, ice cream sales also increase. What type of association is this, and what does a scatter plot help us determine that a table of numbers cannot?

Example 4

hard
A scatter plot of age (x) vs. reaction time (y) shows a curved upward pattern (reaction time increases with age, faster for older individuals). Why would fitting a straight line to this data be problematic?
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