Math 1 Statistics Review

Front

What does a residual plot indicate about a linear model?

Back

If there is no pattern in the residual plot, a linear model is appropriate.

Front

How do you determine the number of students scoring within a specific range?

Back

Count the number of students whose scores fall between the specified values.

Front

What is positive correlation?

Back

A relationship where as one variable increases, the other variable also increases.

Front

What is negative correlation?

Back

A relationship where as one variable increases, the other variable decreases.

Front

What is interpolation?

Back

Predicting a value within the range of known data points.

Front

What is extrapolation?

Back

Predicting a value outside the range of known data points.

Front

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

Back

Changes in one variable do not affect the other variable.

Front

How can you visually represent the relationship between two variables?

Back

Using a scatter plot.

Front

What is the purpose of a scatter plot?

Back

To show the relationship between two quantitative variables.

Front

What does a linear regression line represent?

Back

The best fit line that predicts the relationship between two variables.