"In scatter diagram, if most of the points lie in the first and third quadrants, then
coefficient of correlation is
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"In scatter diagram, if most of the points lie in the first and third quadrants, then coefficient of correlation is _______.
A. Negative
B. Positive
C. Zero
D. All of these
Answer:
"In scatter diagram, if most of the points lie in the first and third quadrants, then coefficient of correlation is B. Positive.
Explanation for the answer:
- It is because all the points on a scatter plot lie on a straight line.
- A positive correlation refers to a relationship between two variables which moves in the same direction.
- A positive correlation exists when one variable increases as the other variable increases or vice-versa.
- Hence, the correct answer among all the options is option B. Positive.
Explanation for the options which are Incorrect:
- Negative correlation is also called as an inverse relationship.
- In a negative correlation, one variable decreases while the other increases and vice-versa.
- A zero correlation indicates or shows that there is no relationship between the two variables.
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