Quiz about 6.2 - Scatter Plots and Trend Lines

Question 1

What is the type of association?

Accepted Answer

no association

Answer

Negative

Answer

positive

Question 2

What type of association does this graph have?

Accepted Answer

positive

Answer

negative

Answer

none

Answer

all of the above

Question 3

What type of association does this scatter plot show?

Accepted Answer

negative linear association

Answer

positive linear association

Answer

no association

Answer

nonlinear association

Question 4

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 140 pages.

Accepted Answer

14 chapters

Answer

12 chapters

Answer

19 chapters

Answer

21 chapters

Question 5

identify the outlier

Accepted Answer

100, 30

Answer

30, 100

Answer

there is no outlier

Question 6

Choose the graph with a trend line that best fits the data.

Accepted Answer

graph 1

Answer

graph 2

Answer

graph 3

Answer

graph 4

Question 7

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

Accepted Answer

lose 5 hours of sleep for 7 cups of coffee

Answer

gain 5 hour of sleep for 7 cups of coffee

Answer

lose 7 cups of coffee for 5 hours of sleep

Answer

lose 5 cups of coffee for 7 hours of sleep

Question 8

Which of the following are ways to find the rate of change?

Accepted Answer

all these methods will work

Answer

change in y over change in x

Answer

rise over run

Answer

subtract y coordinates over subtract x coordinates

Question 9

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

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 10

Which of the following lines represents the trend line for the scatter plot?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 11

Which sentence describes the relationship shown on this scatter plot?

Accepted Answer

As the temperature increases, the number of visitors increases.

Answer

As the temperature decreases, the visitors increase.

Answer

As the visitors increase, the temperature decreases.

Answer

No correlation

Question 12

Which best describes the form of this scatterplot?

Accepted Answer

nonlinear

Answer

linear

Answer

scattered

Question 13

What does the slope represent in this situation?

Accepted Answer

The sloth runs 6 feet in 1 minute

Answer

The sloth runs 1 feet in 3 minutes

Answer

The sloth runs 3 feet in 1 minute

Answer

The sloth runs fast

Question 14

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

Accepted Answer

As x increases, y decreases

Answer

As x increases, y increases

Answer

As x decreases, y decreases

Question 15

Which of the following would be the most accurate equation for the scatter plot?

Accepted Answer

y = 3x + 7

Answer

y = -2x - 7

Answer

y = -x + 7

Answer

y = 25x + 7

Question 16

If a scatterplot has no correlation then...

Accepted Answer

...its ordered pairs have no predictable pattern

Answer

...it has no ordered pairs

Answer

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

Answer

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

Question 17

What is a scatter plot?

Accepted Answer

A graph that shows the relationship of two data sets.

Answer

A graph drawn using rectangular bars to show how large each value is.

Answer

A graph that shows information that is connected in some way.

Answer

A graph that shows data changing over time.

Question 18

About how many male math teachers were there in 2006?

Accepted Answer

35

Answer

15

Answer

30

Answer

45

Question 19

3.5 hours of sleep = about ???

Accepted Answer

75

Answer

69

Answer

83

Answer

85

Question 20

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

Accepted Answer

$740

Answer

$1000

Answer

$550

Answer

$1740

Question 21

What type of association does this scatter plot represent?

Accepted Answer

no association

Answer

positive linear association

Answer

negative linear association

Answer

nonlinear association

Question 22

If a carpenter earned $1000, what is the best estimate for how many days he worked?

Accepted Answer

4

Answer

3

Answer

5

Answer

6

Question 23

What is a line of best fit used for?

Accepted Answer

To make predictions

Answer

To make the graph look pretty

Answer

To connect the points

Question 24

What type of correlation (association)?
The outside temperature and the amount of layers you wear.

Accepted Answer

Negative correlation

Answer

Positive correlation

Answer

No correlation

Answer

All of the above

Question 25

What would be the weight of a person who is 72 inches tall?

Accepted Answer

About 163 lbs

Answer

About 180 lbs

Answer

About 153 lbs

Answer

About 145 lbs

Question 26

How long does a person with 3 cavities brush their teeth?

Accepted Answer

1 minute

Answer

1.75 minutes

Answer

4 minutes

Answer

0.5 minutes

Question 27

How many potatoes are in a 15 pound bag?

Accepted Answer

45

Answer

8

Answer

15

Answer

50

6.2 - Scatter Plots and Trend Lines

30 questions

What is the type of association?

What type of association does this graph have?

What type of association does this scatter plot show?

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 140 pages.

1. Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?

identify the outlier

Choose the graph with a trend line that best fits the data.

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

Which of the following are ways to find the rate of change?

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

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