Line of best fit

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 pages would be in a book with 6 chapters. 

• 100 pages
• 170 pages
• 60 pages
• 20 pages

Which best describes the association shown in the scatter plot below?

• Negative and linear

• Negative and non-linear

• Positive and linear

• Positive and non-linear

The data slightly resembles a line but is more spread out

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

Which of the following could be a possible line of best fit for the data?

• y = 3x + 0
• y = 5/6x + 490
• y = -2x + 470
• non linear

What is the line of best fit?

• f(x)= 5x+1.82
• cannot be determined
• f(x)= 1.82x + 5.02
• f(x)= 1.1x + 4.2

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57
• f(x) = 5.57x + 25.05
• f(x) = -5.57x + 25.05
• f(x) = 5.57x - 25.05

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y= 10

What are the coordinates of the outlier?

• (3,4)

• (4,3)

• (3,10)

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

• A
• B
• C
• D

The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding.  What is the equation of the line of best fit?

• y = -25x + 170
• y = 25x + 170
• y = -(5/8) x + 170
• y = (5/8) x + 170