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Correlations and Slopes DOL

Total questions: 24

Worksheet time: 33mins

Name
Class
Date
1.

Positive, negative, or no correlation between x and y?

a)

Positive/direct

b)

Negative/indirect

c)

None

2.

Positive, negative, or no correlation between x and y?

a)

Negative

b)

Positive

c)

None

3.

Positive, negative, or no correlation between x and y?

a)

Negative

b)

Positive

c)

None

4.
What is Brad's slope in terms of sit-ups?
a)
1 sit-up per day
b)
5 sit-ups per day
c)
15 sit-ups per day
5.

What kind of correlation?

a)

Positive

b)

Negative

c)

None

6.

What kind of correlation?

a)

Positive

b)

Negative

c)

None

7.

What kind of correlation?

a)

Positive

b)

Negative

c)

None

8.
What type of correlation is when one value is increasing, then the other value is decreasing?
a)
postive
b)
negative
c)
none
d)
cannot be determined
9.
What type of correlation has one value increasing as the other value is also increasing?
a)
postive
b)
negative
c)
none
d)
cannot be determined
10.
What type of correlation describes the following sentence:
The temperature outside and the number of hot chocolate sold at a football game.
a)
postive
b)
negative 
c)
none
d)
cannot be determined
11.
What would be the correlation be between study time and test grades?
a)
positive correlation
b)
negative correlation
c)
no correlation
d)
cannot be determined
12.
Which sentence describes the relationship shown on this scatter plot?
a)
As the temperature decreases, the visitors increase. 
b)
As the temperature increases, the number of visitors increases. 
c)
As the visitors increase, the temperature decreases. 
d)
No correlation
13.

Which is the best-fit line that describes our data?

a)

Blue

b)

Green

c)

Red

d)

Black

e)

None of the above. A best-fit line cannot be determined.

14.
Which of the following lines represents the line of best fit for the scatter plot?
a)
A
b)
B
c)
C
d)
D
15.

Positive, negative or no correlation between depth of water and temperature?

a)

Positive/direct

b)

Negative/indirect

c)

None

16.

Positive, negative, or no correlation between time and speed of a car?

a)

Positive/direct

b)

Negative/indirect

c)

None

17.

Calculate the slope of this best-fit line

a)

0.4

b)

2.5

c)

1

d)

0.6

18.

Calculate the slope of this best-fit line

a)

0.9

b)

-0.9

c)

5

d)

1.1

e)

-1.1

19.

Calculate the slope of this best-fit line

a)

-10

b)

10

c)

-1

d)

-5

20.

Calculate the slope of this best-fit line

a)

-2

b)

2

c)

-1.67

d)

-0.6

21.
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. 
a)
12 chapters
b)
15 chapters
c)
18 chapters
d)
21 chapters
22.

Find the slope.

a)

1.5

b)

-1.5

c)

0.67

d)

-0.67

23.

Find the slope of the line.

a)

0.25

b)

-0.25

c)

-4

d)

4

24.

Find the slope of the line.

a)

2

b)

-2

c)

0.5

d)

-0.5

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