Scatter Plots Lines of Best Fit Correlation

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase.

• As the temperature increases, the number of visitors increases.

• As the visitors increase, the temperature decreases.

• No correlation

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

• A

• B

• C

• D

When the data closely resembles a line

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

Which Scatterplot has the correct line of best fit?

• A

• B

• C

• D

Take a look at the scatter plot and line of best fit. Is the line of best fit correct? Why or why not?

• No, while the line does cross through some points, it does not follow the slope of the data.

• Yes, there are approximately the same points above and below the line.

• No, not enough points are plotted to determine if this is an accurate line.

• Yes, the line trends closely with the observed data.

Which of the following could be a possible line of best fit for the data?

• y = 3x + 0

• y = 5/6x + 490

• y = -2x + 470

• non linear

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.

• The more books students read, the higher their English grade.

• The fewer books students read, the higher their English grade. 

• No relationship exists between the number of books students read and their English grades. 

What type of correlation does this scatter plot show?

• positive

• negative

• no correlation

• nonlinear association

As x increases, y decreases.

• no correlation

• negative correlation

• correlation coefficient

• positive correlation