Line of best Fit

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 scatter plot. It shows the general direction of the data points.

Tags

CCSS.8.EE.B.5

Front

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

Back

The slope of the line of best fit is calculated by taking two points on the line and using the formula: slope = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

What does a positive slope indicate in a line of best fit?

Back

A positive slope indicates that as one variable increases, the other variable also increases.

Tags

CCSS.8.EE.B.5

Front

What does a negative slope indicate in a line of best fit?

Back

A negative slope indicates that as one variable increases, the other variable decreases.

Tags

CCSS.8.EE.B.5

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that differs significantly from other observations. It may indicate variability in the measurement or a possible experimental error.

Tags

CCSS.8.SP.A.1

Front

How can you identify an outlier in a scatter plot?

Back

An outlier can be identified as a point that lies far away from the cluster of other points in the scatter plot.

Tags

CCSS.8.SP.A.1

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to summarize the relationship between two variables and to make predictions based on that relationship.

Tags

CCSS.8.EE.B.5

Front

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

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What is the equation of a line in slope-intercept form?

Back

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How do you find the y-intercept of a line of best fit?

Back

Tags

CCSS.8.EE.B.5