Math 1 Unit 4 Two Variable Statistics

Front

A relationship between two numerical variables in which the scatter plot displaying the data resembles a line.

Back

Linear relationship

Front

A relationship between two numerical variables in which the scatter plot displaying the data has a pattern other than a line, usually curved in some way.

Back

Nonlinear relationship

Front

A correlation coefficient that is between .8 and 1 or -.8 and -1.

Back

Strong Correlation

Front

A correlation coefficient that is between .5 and .8 or -.5 and -.8.

Back

Medium Correlation

Front

A correlation coefficient that is between .2 and .5 or -.2 and -.5.

Back

Weak Correlation or No Correlation

Front

A number between -1 and 1 that describes the strength and direction of a linear relationship between two numerical variables.

Back

Correlation coefficient

Front

An association is

Back

A relationship between two or more variables.

Front

Residual

Back

The difference between the y-value for a point in a scatter plot and the value predicted by the linear model for the associated x-value.

Front

Extrapolation

Back

When a predicted value comes from an x-value that falls outside the boundaries of the given data set.

Front

Interpolation is

Back

When a predicted value comes from an x-value inside the boundaries of the given data set.