Negative Correlation

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

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases

Which statement is true about the given scatter plot?

• It has positive association because all of the points have positive coordinates

• It has negative association because the practice length is always less than the number of baseballs in the cart.

• It has positive association becouse the points on the graph go towards 50.

• It has negative association because as the practice length increases the number of baseballs decreases.

What type of correlation does this graph have?

• positive 

• negative

• none

• all of the above

As x increases, y decreases.

• no correlation

• negative correlation

• correlation coefficient

• positive correlation

As x increases, y decreases.

• no correlation

• negative correlation

• correlation coefficient

• positive correlation

Which situation describes a negative correlation?

• the amount of time spent on your phone and the battery left on the phone

• the number of hours spent studying and the test score

• the number of miles driven and the amount of gas used

• hair color and intelligence

If a scatter plot has a negative correlation, as the x value goes ​ (a)   the y value goes ​​ (b)  

• up

• down

• sideways

• Omaha

Answer explanation

In a negative association, the y value goes down as the x value grows.

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?

• 65

• 92

• 70

• 76

Estimate the correlation coefficient for this scatterplot.

• r = -0.9

• r = 1

• r = 0.9

• r = -1

Describe the relationship between the variables.

• Weak positive correlation

• Weak negative correlation

• Strong positive correlation

• Strong negative correlation