Linear Regression Flashcard

Front

What is the equation of the line of best fit?

Back

Front

What is the formula for linear regression?

Back

Front

Describe the correlation if the correlation coefficient is r = -0.26.

Back

The correlation is Negative and weak.

Front

If age is a and weight is W, what is the correct equation for the line of best fit?

Back

Front

What does a strong positive correlation indicate?

Back

A strong positive correlation indicates that as one variable increases, the other variable also increases.

Front

What does a weak negative correlation indicate?

Back

A weak negative correlation indicates that there is a slight tendency for one variable to decrease as the other increases.

Front

What is the range of correlation coefficients?

Back

The range of correlation coefficients is from -1 to 1.

Front

What does a correlation coefficient of 0 indicate?

Back

A correlation coefficient of 0 indicates no correlation between the variables.

Front

What is the slope in the equation of a line?

Back

The slope in the equation of a line (y = mx + b) represents the rate of change of y with respect to x.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept represents the value of y when x is 0.