3.5 Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a positive correlation indicate in a scatter plot?

Back

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

Front

What does a negative correlation indicate in a scatter plot?

Back

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

Front

What does no correlation mean in a scatter plot?

Back

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

Front

How can you identify a positive correlation in a scatter plot?

Back

A positive correlation can be identified by points that trend upwards from left to right.

Front

How can you identify a negative correlation in a scatter plot?

Back

A negative correlation can be identified by points that trend downwards from left to right.

Front

What is the purpose of using scatter plots in data analysis?

Back

Scatter plots are used to visually assess the relationship between two quantitative variables and to identify trends, patterns, or outliers.

Front

What is an example of a situation that might show a negative correlation?

Back

An example of a negative correlation is the relationship between outside temperature and the number of layers of clothing worn.

Front

What is an example of a situation that might show a positive correlation?

Back

An example of a positive correlation is the relationship between height and weight, where generally taller individuals weigh more.

Front

What does a scatter plot with no correlation look like?

Back

A scatter plot with no correlation shows points that are randomly scattered without any discernible pattern.