Describing Scatter Plots

In this section you will learn how to identify the relationship between variables in a scatterplot. These variables are the explanatory and the explained variable that were defined earlier in the scatterplots section. The following activities ask you to examine the scatterplots pictured and then match them with their description.

Scatterplots labeled A through F.

This exercise would be simpler given uniform adjectives that everyone could understand. When describing the shape of the scatter plot and the relationship between the explanatory and explained variable, there are three important features to discuss.

A scatterplot depicting the temperature in January across latitudes.

For example, the scatterplot of latitude and January temperatures had negative direction, as the greater the latitude, the colder the temperature. Though there are a few outliers (cities along the northwest coast of the US that have temperate winters, such as Portland, OR) there is a strong, linear trend.

Given a new set of scatterplots below, repeat the same exercise, but now with the new descriptions of strength, linearity and direction.

Six scatterplots labeled A through F.
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