Interpolation and Extrapolation

Front

What is interpolation?

Back

Interpolation is the process of estimating unknown values that fall within the range of known data points.

Front

What is extrapolation?

Back

Extrapolation is the process of estimating unknown values that fall outside the range of known data points.

Front

Given the regression equation pushups = 0.72 + 7.62 * miles, how many miles should someone be able to run if they do 24 push-ups?

Back

3.06 miles.

Front

What does a positive correlation between two variables indicate?

Back

It indicates that as one variable increases, the other variable also increases.

Front

What does a negative correlation between two variables indicate?

Back

It indicates that as one variable increases, the other variable decreases.

Front

What does no correlation between two variables mean?

Back

It means there is no predictable relationship between the two variables.

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.

Front

If a scatter plot shows a downward trend, what type of correlation is present?

Back

Negative correlation.

Front

What is the purpose of using a regression equation?

Back

To predict the value of one variable based on the value of another variable.

Front

What is the difference between interpolation and extrapolation in terms of data range?

Back

Interpolation is used within the range of known data, while extrapolation is used outside that range.