least squares regression line

Front

A ____________ regression line makes the residuals as small as possible.

Back

good

Front

Y-hat is the ________ value of y for a given value of x.

Back

predicted

Front

Which of the following statements is not true of the correlation r between the lengths in inches and weights in pounds of a sample of brook trout? r is measured in __________.

Back

inches

Front

Which of the following best describes a positive correlation?

Back

Both variables increase together.

Front

You are analyzing a scatter plot that has a negative correlation. What is true of the x and y values? As x __________, y decreases.

Back

increases

Front

The least squares regression line minimizes the sum of the __________ of the residuals.

Back

squares

Front

In a scatter plot, a positive correlation indicates that as one variable __________, the other variable also increases.

Back

increases

Front

The correlation coefficient r ranges from __________ to __________.

Back

-1 to 1

Front

If r = 0, this indicates that there is __________ correlation between the two variables.

Back

no

Front

A strong positive correlation would have a correlation coefficient close to __________.

Back

1