Unit Test Review: Bivariate Data

Front

What does the slope of a linear model represent in a scatterplot?

Back

The slope represents the rate of change in the dependent variable for each unit change in the independent variable.

Front

What is a positive association in bivariate data?

Back

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

Front

What is a negative association in bivariate data?

Back

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

Front

What does it mean if there is no association between two variables?

Back

It means that changes in one variable do not predict changes in the other variable.

Front

What is a linear association?

Back

A linear association indicates a straight-line relationship between two variables.

Front

What is a non-linear association?

Back

A non-linear association indicates a relationship between two variables that does not form a straight line.

Front

What is the line of best fit in a scatterplot?

Back

The line of best fit is a straight line that best represents the data points in a scatterplot.

Front

What does the y-intercept represent in a linear equation?

Back

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

Front

How do you interpret the slope of a line in a real-world context?

Back

The slope indicates how much the dependent variable changes for each unit increase in the independent variable.

Front

What is the purpose of a scatterplot?

Back

A scatterplot is used to visualize the relationship between two quantitative variables.