Scatter Plots and Data Unit Review

What type of association does this graph have?

• positive
• negative
• none
• all of the above

What is a scatter plot?

• A graph that shows the relationship of two data sets.
• A graph drawn using rectangular bars to show how large each value is.
• A graph that shows information that is connected in some way.
• A graph that shows data changing over time.

Which scatter plot shows a linear relationship between x and y?

• Graph A
• Graph B
• Graph C
• Graph D

Find the slope

• -2/3
• 3/2
• -3/2
• 2/3

Tags

CCSS.8.EE.B.5

Find the slope

• 4/5
• 5/4
• -5/4
• -4/5

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.C.7

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases
• As x increases, y increases
• As x decreases, y decreases

Stronger associations have dots that are

• far apart

• close together

• in a line

• in a curve

Using the equation y = 120x + 76

Find the value of y if x = 20

• 316

• 2476

• 20.17

• 82

Write an equation in slope - intercept form for trend line.

• y = 1x+1/2
• y = 1/2x + 1
• y = 1x + 1
• y = 1/2x + 2

What is the equation of the line of best fit?

• y = 3/2x

• y = 30x

• y = 30x + 300

• y = 3/2x + 300

Tags

CCSS.8.EE.B.5