Bivariate Statistics

What type of association does this graph have?

• positive

• negative

• none

• all of the above

What type of correlation is shown in the scatter plot?

• Positive Linear Correlation

• Negative Linear Correlation

• Non-Linear Correlation

• No Correlation

Given the following Scatter Plot, select the option that is most likely the r value.

Estimate the correlation coefficient for this scatterplot.

• r = -0.9

• r = 1

• r = 0.9

• r = -1

Bivariate data is the study of how many variables?

• 3

• 1

• 2

• 0

What is the correlation coefficient of the data characteristics shown?

• -.928

• .928

• .861

• -.861

In a scatterplot, an outlier...

• ...is a point that is on the line of best fit

• ...is a point on the origin

• ...is a point that is far outside the main cluster of points/ordered pairs

• ...is a group of points that are close together

What is the correlation between length of running start and distance of jump?

• positive:  the further you run the further you jump

• negative: the less you run the less distance of your jump

• positive: the further your running start the less your distance

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. 

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