Scatter Plot/Trendlines

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points
• To make it look like you know what you are doing

Tags

CCSS.8.EE.B.5

In a scatterplot, an outlier...

• ...is something we didn't learn in 8th grade
• ...is a point on the origin
• ...is a point that is far outside the main cluster of points/ordered pairs
• ...is a group of points that are close together

Tags

CCSS.8.SP.A.1

In a scatterplot, a cluster...

• ...is something we didn't learn in 8th grade
• ...is a point on the origin
• ...is a point that is far outside the main cluster of points/ordered pairs
• ...is a group of points that are close together

Tags

CCSS.8.SP.A.1

Make a prediction, a resting heart rate ​ (a)   after 6 hours of exercise a week.

• 55
• 6
• 50
• 59

Tags

CCSS.HSF.BF.A.2

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

What type of correlation does this scatter plot show?

• positive linear association

• negative linear association

• no association

• nonlinear association

Tags

CCSS.HSS.ID.B.5

If Gold's Gym paid $750 for each TV, how many did they buy?

• 10

• 26

• 30

• 18

Tags

CCSS.7.RP.A.2D

Based on the line of best fit for the scatter plot, which of the following amounts is closest to the cost of a 60-minute phone call?

• $6

• $9

• $10

• $12

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 105°?

• 50

• 90

• 106

• 98

Tags

CCSS.HSF.BF.A.2

Based on the trend line for the scatter plot, which of the following amounts is closest to the cost of a 70-minute phone call?

• $7

• $8.50

• $9

• $10