Scatter Plots Trend Line Predictions

Which of the following would be a reasonable approximation for the length of time it would take this person to run 6 miles?

• ≅ 50 min

• ≅ 80 min

• ≅ 45 min

• ≅ 60 min

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

Tags

CCSS.8.EE.B.5

Level 1: Determine the type of correlation.

• Positive

• Negative

• No Correlation

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

• 55

• 0

• 103

• 100

Estimate the y-intercept of the trend line by looking at the graph.

• 2

• 1.8

• 1.2

• 0

Tags

CCSS.HSF.LE.B.5

Based on this data, how much money would the carpenter earn from a job that took 3 days to complete?

• $740

• $1000

• $550

• $1740

Tags

CCSS.HSF.IF.A.2

If a scatterplot has no correlation then...

• ...it has no ordered pairs

• ...it has ordered pairs that have a negative pattern

• ...its ordered pairs have no predictable pattern

• ...if it makes a lion on a graph (roar!)

What is the correlation?

• Negative correlation

• No correlation

• Positive correlation

• All of the above

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

Tags

CCSS.HSF.IF.B.4

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.HSF.LE.B.5