Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Front

What does a positive association in a scatterplot indicate?

Back

A positive association indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative association in a scatterplot indicate?

Back

A negative association indicates that as one variable increases, the other variable tends to decrease.

Front

What does no association in a scatterplot mean?

Back

No association means that there is no discernible relationship between the two variables; changes in one do not affect the other.

Front

How can you identify a positive trend in a scatterplot?

Back

A positive trend is identified when the points on the scatterplot slope upwards from left to right.

Front

How can you identify a negative trend in a scatterplot?

Back

A negative trend is identified when the points on the scatterplot slope downwards from left to right.

Front

What is the purpose of using scatterplots?

Back

Scatterplots are used to visually represent the relationship between two quantitative variables.

Front

What does the slope of a scatterplot represent?

Back

The slope of a scatterplot represents the rate of change between the two variables.

Front

What is an example of a positive association?

Back

An example of a positive association is the relationship between hours studied and test scores, where more hours studied typically lead to higher scores.

Front

What is an example of a negative association?

Back

An example of a negative association is the relationship between the amount of exercise and body weight, where more exercise typically leads to lower body weight.