Correlation: Relationships Between Variables

Quiz
•
Mathematics
•
11th Grade
•
Hard
Barbara White
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which of the following correlation coefficients indicates the strongest relationship between variables?
-0.95
0.30
0.50
0.90
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which of the following shows the least correlation between two variables?
-0.99
-0.25
0
0.99
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which of the following values could not represent a correlation coefficient?
r =0.99
r = 1.09
r = -0.73
r = -1.0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which data will most likely show a negative correlation when graphed on a scatter plot?
The student’s height and their general average.
The outside temperature and the number of people wearing jackets.
The number of visitors at an amusement park and the length of the lines for the rides.
The distance a student lives from school and the amount of time it takes to get to school.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is found that there is a correlation of exactly 1.0 between two variables. Which of the following is INCORRECT?
Correlation is measured on a scale of −1.0 to 1.0.
The association between the two variables is positive.
There is a strong association between the two variables.
There is enough evidence to assert that one variable causes the other.
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which scatter plot shows most likely a positive correlation?
I only
II only
Both I and II
Neither
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a medical school, it is found that there is a correlation of −0.95 between the amount of coffee consumed by students and the number of hours students sleep each night. Which of the following is TRUE?
i. There is a positive association between the two variables.
ii. There is a strong correlation between the two variables.
iii. Coffee consumption in medical school students causes students to sleep less each night.
ii only
iii only
i and ii
i and iii
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