Scatter plots and association

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Tags

CCSS.8.SP.A.1

Front

What does a positive correlation in a scatter plot indicate?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What does a negative correlation in a scatter plot indicate?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What does it mean if a scatter plot shows no relationship?

Back

It means that there is no discernible pattern or correlation between the two variables being plotted.

Tags

CCSS.HSS.ID.B.5

Front

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

Back

A positive correlation can be identified by a pattern where points slope upwards from left to right.

Tags

CCSS.HSS.ID.B.5

Front

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

Back

A negative correlation can be identified by a pattern where points slope downwards from left to right.

Tags

CCSS.HSS.ID.B.5

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables and to identify trends or correlations.

Tags

CCSS.8.SP.A.1

Front

What is an example of a positive correlation?

Back

An example of a positive correlation is the relationship between study time and test scores; generally, more study time leads to higher scores.

Tags

CCSS.HSS.ID.B.5

Front

What is an example of a negative correlation?

Back

An example of a negative correlation is the relationship between the amount of time spent watching TV and grades; more TV time often leads to lower grades.

Tags

CCSS.HSS.ID.B.5

Front

What is the significance of the slope in a scatter plot?

Back

The slope indicates the direction and strength of the relationship between the two variables; a steeper slope indicates a stronger relationship.

Tags

CCSS.8.EE.B.5