Line of Best Fit Flashcard

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data points.

Front

What is the purpose of a line of best fit?

Back

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

Front

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

Back

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

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 increases.

Front

What does a negative association in a scatter plot indicate?

Back

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

Front

What is the meaning of 'no correlation' in a scatter plot?

Back

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

Front

What is the slope of a line of best fit?

Back

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

Front

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

Back

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

Front

How can you use a line of best fit to make predictions?

Back

You can use a line of best fit to predict the value of the dependent variable for a given value of the independent variable by substituting the value into the equation.

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for two variables using dots to represent the data points.