WorksheetsCorrelations
Total questions: 15
Worksheet time: 53mins
Name
Class
Date
1.
What kind of correlation is this?
a)
Positive
b)
Negative
c)
No correlation
2.
Rank these scatter plots according to the intensity of the correlation represented, from weakest to strongest.
a)
1, 2, 3, 4
b)
2, 4, 3, 1
c)
4, 3, 2, 1
d)
1, 3, 4, 2
3.
The correlation coefficient, is always between ___ and ___.
a)
0 and 1
b)
-1 and 1
c)
-1 and 0
d)
0 and 10
4.
A perfect negative correlation has a correlation coefficient of ____.
a)
1
b)
-1
c)
0
d)
10
5.
If there is NO correlation between 2 variables, the correlation coefficient is ____.
a)
1
b)
-1
c)
0
d)
10
6.
What kind of correlation is this?
a)
Positive
b)
Negative
c)
No correlation
7.
Describe the correlation in the graph shown.
a)
Strong Negative
b)
Weak Positive
c)
Weak Negative
d)
Strong Positive
8.
What can we determine about the relationship between two variables from the correlation coefficient?
a)
Style + Type
b)
Percentage + Direction
c)
Strength + Direction
d)
Strength + Style
9.
Attendance & college GPA's have a correlation coefficient of -0.89...this indicates a ______ correlation.
a)
Strong positive
b)
Weak positive
c)
Strong negative
d)
Weak negative
10.
Which of the following represents the STRONGEST correlation?
a)
-.03
b)
+.5
c)
+.03
d)
-.79
11.
In order to graphically represent a correlation between two variables researchers construct a ___.
a)
skewed distribution
b)
histogram
c)
normal curve
d)
scatterplot
12.
A researcher finds a correlation coefficient of +2.00 between cigarette smoking and lung cancer. This correlation coefficient indicates a(n)...
a)
weak positive relationship
b)
strong positive relationship
c)
perfect positive relationship
d)
error in computation
13.
George finds that the longer he exercises, the less he weighs. The relationship between exercise & weight may be described as a(n) ___ correlation.
a)
positive
b)
negative
c)
normal
d)
skewed
14.
A correlation of -.90 between two sets of scores indicates that people who earned high scores on their first SAT generally earned ___ scores on the second.
a)
high
b)
low
c)
average
d)
statistically significant
15.
Which of the following is the WEAKEST negative correlation?
a)
0
b)
-.34
c)
-.92
d)
-.57
100 %
