Bivariate Data

Front

What is bivariate data?

Back

Bivariate data involves two variables and is used to determine the relationship between them.

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 Cartesian plane.

Front

What does a positive association in bivariate data indicate?

Back

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

Front

What does a negative association in bivariate data indicate?

Back

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

Front

What is no association in bivariate data?

Back

No association means that there is no discernible relationship between the two variables.

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 the data points.

Front

What is the equation of a trend line?

Back

The equation of a trend line is a mathematical representation of the relationship between the two variables, often in the form of y = mx + b.

Front

How do you interpret the slope of a trend line?

Back

The slope of a trend line indicates the rate of change of the dependent variable (y) for each unit change in the independent variable (x).

Front

What does the y-intercept represent in a trend line equation?

Back

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

Front

How can you use a trend line to make predictions?

Back

You can use a trend line to predict the value of the dependent variable by substituting the value of the independent variable into the trend line equation.