Context Line of Best Fit and the Correlation Coefficient

Find the slope for the trend line using points (2,2) and (4,3)

• 2

• 1/2

• -2

Tags

CCSS.8.EE.B.5

In the scatter plot, does the image shows a "Line of Best Fit"?

• Yes

• No

Tags

CCSS.8.EE.B.5

Which graph shows a line of best fit for the scatter plot?

• Graph A

• Graph B

• Graph C

• Graph D

Tags

CCSS.8.EE.B.5

Which with is the line of best fit?

• Black

• Orange

• Red

• Blue

Tags

CCSS.8.EE.B.5

The correlation coefficient is a number "r" such that: 

• -1<r<1

• -1>r>1

• -1≤r≤1

• -1≥r≤1

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

Tags

CCSS.8.EE.B.5

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

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

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

Tags

CCSS.8.EE.B.5

• 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