WorksheetsScatterplots
Total questions: 15
Worksheet time: 21mins
Name
Class
Date
1.
What is the first button you press to find the menu where you turn on the STAT DIAGNOSTICS on your calculator?
a)
Alpha
b)
STAT
c)
Mode
d)
y=
2.
What type of association does this graph have?
a)
positive
b)
negative
c)
none
d)
all of the above
3.
What is this type of correlation?
a)
Negative
b)
no association
c)
positive
4.
What type of Associative correlation is this ?
The outside temperature and the amount of layers you wear.
The outside temperature and the amount of layers you wear.
a)
Positive correlation
b)
Negative correlation
c)
No correlation
5.
What type of correlation is this?
Students turn in more papers and the stack of papers that needs to be graded gets higher.
Students turn in more papers and the stack of papers that needs to be graded gets higher.
a)
Association
b)
Causation
c)
No Correlation
6.
What type of Associative correlation is this?
The temperature outside and the amount of ice cream sales.
The temperature outside and the amount of ice cream sales.
a)
Positive correlation
b)
Negative correlation
c)
No correlation
7.
What is the line of best fit for this data?
a)
y=2.1x+7.097
b)
y=2x
c)
y=2.036x+1.286
d)
y=.964x+.982
8.
What is the line of best fit?
a)
f(x)= 5x+1.82
b)
cannot be determined
c)
f(x)= 1.82x + 5.02
d)
f(x)= 1.1x + 4.2
9.
If the correlation coefficient is r=-.567, what is the trend of the data?
a)
Positive
b)
No Trend
c)
Negative
d)
Rainbows
10.
What is the correlation coefficient of this date?
a)
-.778
b)
.605
c)
-.039
d)
7.068
11.
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
12.
The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?
a)
55
b)
0
c)
103
d)
100
13.
The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month. Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles?
a)
A. 50 min
b)
B. 80 min
c)
C. 45 min
d)
D. 60 min
14.
If the correlation coefficient is r=.987, what is the strength of the line of best fit compared to the data?
a)
Weak Positive
b)
Strong Positive
c)
Weak Negative
d)
Strong Negative
15.
Who is this?
a)
Mrs. Simpson
b)
Mrs. Falcon
c)
Mr. Carter
d)
Mrs. Bolin
100 %
