Scatter Plots, Lines of Best Fit, & Linear Regression

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

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

What is the correlation?

• Negative correlation
• No correlation
• Positive correlation
• All of the above

What represents the x axis?

• ABC Company
• Hours Worked
• Amount Earned in Dollars
• Hours in Car

Tags

CCSS.HSF.IF.B.4

Looking at the graph showing a line of best fit, what is the correlation shown?

• Length of life is constant
• Length of life increases as amount of sunlight increases
• Length of life increases as amount of sunlight decreases
• Length of life decreases as amount of sunlight increases

• 8

• 14

• 32

• 64

Tags

CCSS.HSF.LE.B.5

The table shows the attendance at a flag football game for the first 8 games of the season. What is the correlation of the data?

• Weak positive

• Weak negative

• Strong positive

• Strong negative

Tags

CCSS.HSF-LE.A.1B

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.

Tags

CCSS.HSF.LE.B.5

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

• (0,900)

• (900,0)

• (2001, 400)

• (1995, 900)

Tags

CCSS.HSF.LE.B.5

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