Scatter Plots

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 increases.

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 decreases.

Tags

CCSS.HSS.ID.B.5

Front

What does no correlation mean in a scatter plot?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

How can you identify a line of best fit in a scatter plot?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, minimizing the distance between the line and all data points.

Tags

CCSS.8.EE.B.5

Front

What is the purpose of a line of best fit?

Back

The purpose of a line of best fit is to predict values and understand the relationship between the variables.

Tags

CCSS.8.EE.B.5

Front

What is the formula for a linear equation in slope-intercept form?

Back

The formula is y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What does the slope of a line in a scatter plot represent?

Back

The slope represents the rate of change between the two variables; a steeper slope indicates a stronger relationship.

Tags

CCSS.8.EE.B.5

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; more study time typically leads to higher scores.

Tags

CCSS.HSF-LE.A.1B

Front

What is an example of a negative correlation?

Back

An example of a negative correlation is the relationship between the outside temperature and the amount of clothing worn; as temperature increases, clothing layers typically decrease.

Tags

CCSS.HSS.ID.B.5