Bivariate Data Test Review

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

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

• A

• B

• C

• D

Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters

• 15 chapters

• 18 chapters

• 21 chapters

___ data for two variables.

• trivariate

• bivariate

• positive

• negative

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

What type of association does this graph have?

• positive

• negative

• none

• all of the above

Which scatter plot could have a trend line whose equation is y = 3x + 10?

• A

• B

• C

• D

What kind of trend is shown from this scatterplot?

• positive correlation

• negative correlation

• none

• cannot be determind

The equation of the trend line
is  y= 1/2x +1. What does the x variable represent? 

• The number of laps

• The amount of time in hours

• The amount of time in minutes

• How long it takes to go 0 laps