Line of Best Fit and Correlation Coefficient

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

The measure of the strength and direction of a linear relationship

• Interpolation

• Extrapolation

• Correlations Coefficient

• Residual

When the data closely resembles a line

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

The data slightly resembles a line but is more spread out

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

• y = 1.45x + 22
• y = -2x + 15
• y = 1.33x + 30
• y = -1.5x + 24

What is the equation of the line of best fit?

• y= 6x + 2

• y = -2x +6

A line drawn in a scatter plot to fit most of the dots and

shows the relationship between the two sets of data

• Association

• Causation

• Line of Best Fit

• Linear Regression

A method used to find the line of best fit.

• Association

• Causation

• Line of Best Fit

• Linear Regression

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

As x increases, y increases

• correlation coefficient

• causation

• positive correlation

• negative correlation