trend line

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Tags

CCSS.HSF.IF.B.4

What type of association does this graph show?

• Positive
• negative
• none
• all of the above

Tags

CCSS.HSF-LE.A.1B

According to the graph, how many students are in the class?

• 26
• 25
• 15
• 30

Tags

CCSS.HSF.IF.B.4

Find the slope for the trend line using points (2,2) and (4,3)
Use m= (Y2-Y1)/(X2-X1)

• 2
• 1/2
• -2
• -1/2

Tags

CCSS.8.EE.B.5

In this example you can see the trend line in red intersect the 6 absences line at about 76. Therefore the actual point for 6 absences should be near or around 76, not necessarily exactly 76.

• So the actual point could be between 70-85 ish

• ...

Tags

CCSS.HSF.BF.A.2

the slope is -5/7, what does that mean?

• gain 5 hour of sleep for 7 cups of coffee
• lose 5 hours of sleep for 7 cups of coffee
• lose 7 cups of coffee for 5 hours of sleep
• lose 5 cups of coffee for 7 hours of sleep

Tags

CCSS.HSF.LE.B.5

What is the type of correlation for the following scatter plot?

• Negative 
• None
• Positive 

Tags

CCSS.HSS.ID.B.5

Select the statement that best describes the line.

• The line is the line of best fit.
• The line is NOT a line of best fit because it does not pass through two points.
• The line is NOT a line of best fit because it does not go through the middle of the data set.
• The line is NOT a line of best fit because it does not go through the origin.

Tags

CCSS.8.EE.B.5

Which sentence describes the relationship shown on this scatterplot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

Tags

CCSS.8.SP.A.1

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