Bivariate Data Review

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A

• B

• C

• D

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 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.

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

Is the function represented by the table linear or nonlinear?

• Linear

• Nonlinear

Tags

CCSS.8.F.A.3

• A train increases it's speed. It then travels at a constant speed.

• A train decreases it speed. It then travels at a constant speed.

• A train is going a constant speed. It then decreases it speed until it stops.

Of the total students surveyed, what is the relative frequency of students ages 10 - 13 who eat breakfast?

• About 33%

• About 50%

• About 40%

• About 44%

What is the equation of the line of best fit?

• y = -25x + 170

• y = -5/8x + 170

• y = 25x + 170

• y = 5/8x + 170

What type of association does this graph have?

• positive

• negative

• none

• all of the above

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y= 10

Tags

CCSS.8.EE.B.5