Scatterplots

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

Tags

CCSS.8.F.B.5

CCSS.8.SP.A.1

CCSS.8.SP.A.2

What is the type of association?

• Negative 
• no association
• positive 

Tags

CCSS.8.SP.A.1

CCSS.8.SP.A.2

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 chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

Tags

CCSS.8.F.B.4

CCSS.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.SP.A.3

As x increases, y decreases.

• no correlation
• negative correlation
• correlation coefficient
• positive correlation

Tags

CCSS.8.F.B.5

CCSS.8.SP.A.1

CCSS.8.SP.A.2

If Gold's Gym is looking to buy 30 TVs, how much will each one cost?

• 400
• 750
• 1250
• 0

Tags

CCSS.8.EE.B.5

CCSS.8.EE.C.7

CCSS.8.F.B.4

If the debate team practiced for only 1 hour, how many debates are they expected to win?

• 2
• 6
• 10
• 14

Tags

CCSS.8.EE.B.5

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.F.B.5

CCSS.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.SP.A.3

Graph has a slope of 1/2 and a y- intercept of 1.  Write the equation in slope - intercept form

• y = 1x+1/2
• y = 1/2x + 1

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

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

• 2
• 1/2
• -2

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3

In a scatterplot, an outlier...

• ...is Q1 - (1.5 x IQR) or Q3 + (1.5 x IQR) 
• ...is a puppet with a long nose named Pinocchio
• ...is a point that is far outside the main cluster of points/ordered pairs
• ...is a really naughty point who doesn't tell the truth when outside

Tags

CCSS.8.SP.A.1

The range of a function is ______________________

• the domain
• the x-values
• the maximum minus the minimum
• the y-values

Tags

CCSS.8.F.A.1

CCSS.8.F.B.5