Length and Data Plots

Which club has the smaller spread?

• Cruisers

• Car Hops

• Neither, they are the same

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• 50 min

• 80 min

• 45 min

• 60 min

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

Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive

Which equation for the line of best fit matches this graph?

• Y = 4/3x + 5

• Y = -4/3x + 5

• Y = 3/4x + 5

• Y = -3/4x + 5

Which equation written in slope-intercept form represents the trend line shown on the scatter plot below?

What does the slope mean in the context of the situation graphed?

• You burn 500 calories every 60 minutes of exercise.

• You eat 500 calories when you eat out 60 times.

• You burn 100 calories every 10 minutes of exercise.

• You should not exercise.

What is the y-intercept for the given scatter plot?

• (0,900)

• (900,0)

• (2001, 400)

• (1995, 900)

Which of the following would be the most accurate equation for the scatter plot?

• y = -2x - 7

• y = -x + 7

• y = 3x + 7

• y = 15x + 7