Scatter Plots Part 2

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 grid.

Tags

CCSS.8.SP.A.1

Front

What does a positive association in a scatter plot indicate?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What does a negative association in a scatter plot indicate?

Back

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

Tags

CCSS.HSF-LE.A.1B

Front

What is a nonlinear association?

Back

A nonlinear association occurs when the relationship between two variables cannot be accurately represented by a straight line.

Tags

CCSS.8.F.A.3

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, minimizing the distance between the line and all data points.

Tags

CCSS.8.EE.B.5

Front

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

Back

The equation of the line of best fit can be determined using statistical methods such as linear regression.

Tags

CCSS.8.EE.B.5

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to make predictions about one variable based on the value of another variable.

Tags

CCSS.8.EE.B.5

Front

What does the slope of the line of best fit represent?

Back

The slope of the line of best fit represents the rate of change of the dependent variable with respect to the independent variable.

Tags

CCSS.8.EE.B.5

Front

What does the y-intercept of the line of best fit represent?

Back

The y-intercept represents the value of the dependent variable when the independent variable is zero.

Tags

CCSS.HSF.LE.B.5

Front

How can you identify a positive nonlinear association in a scatter plot?

Back

A positive nonlinear association can be identified when the data points form a curve that rises as you move from left to right.

Tags

CCSS.8.F.A.3