QTRM
Quiz
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Other
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University
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Practice Problem
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Hard
Prabahar Ezhil
Used 2+ times
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66 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
What does a correlation coefficient measure?
Causation
Strength and direction of a linear relationship
The standard deviation
The mean
2.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Which correlation coefficient measures the relationship between two continuous variables when the data is not normally distributed?
Pearson correlation coefficient
Spearman rank correlation coefficient
Point-biserial correlation coefficient
Biserial correlation coefficient
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the Pearson correlation coefficient is -0.85, what does this indicate about the relationship between two variables?
Strong positive correlation
Strong negative correlation
Weak positive correlation
No correlation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When the correlation coefficient is 0, it means:
A perfect positive correlation
A perfect negative correlation
No linear relationship
Non-linear relationship
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the range of values for the Pearson correlation coefficient?
-1 to 1
0 to 1
-∞ to ∞
0 to 100
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a scatter plot, if points are scattered randomly with no discernible pattern, what is the likely value of the correlation coefficient?
1
-1
0
0.5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which correlation coefficient is more appropriate when dealing with ordinal data?
Pearson correlation coefficient
Biserial correlation coefficient
Point-biserial correlation coefficient
Spearman rank correlation coefficient
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