Scatterplot Predictions

Front

What is a scatterplot?

Back

A scatterplot 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 scatterplot 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 scatterplot 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 is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatterplot, showing the overall trend of the data points.

Tags

CCSS.8.EE.B.5

Front

How can you use a scatterplot to make predictions?

Back

You can use a scatterplot to make predictions by analyzing the trend shown by the data points and the line of best fit.

Front

What is the purpose of a trend line in a scatterplot?

Back

A trend line helps to visualize the direction and strength of the relationship between the two variables.

Tags

CCSS.8.SP.A.2

Front

What does it mean if there is no correlation in a scatterplot?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

How do you interpret the slope of the line of best fit?

Back

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

Tags

CCSS.8.EE.B.5

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that differ significantly from other observations; they can affect the line of best fit and the overall analysis.

Tags

CCSS.8.SP.A.1

Front

How can you determine the average value from a scatterplot?

Back

You can determine the average value by finding the corresponding value on the line of best fit for a given input.