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All questions of Correlation for Commerce Exam
The sign of the correlation is determined by the- a)standard deviation.
- b)covariance between X and Y.
- c)X variable.
- d)Y variable.
Correct answer is option 'B'. Can you explain this answer?
The sign of the correlation is determined by the
a)
standard deviation.
b)
covariance between X and Y.
c)
X variable.
d)
Y variable.
|
Kalyan Desai answered |
The sign of covariance between X and Y determines the sign of the correlation coefficient. The value of r does not contain any unit.
Value of r lying outside the range of -1 and +1, indicates- a)zero correlation.
- b)strong correlation.
- c)error in calculation.
- d)weak correlation.
Correct answer is option 'C'. Can you explain this answer?
Value of r lying outside the range of -1 and +1, indicates
a)
zero correlation.
b)
strong correlation.
c)
error in calculation.
d)
weak correlation.
|
Om Desai answered |
The value of correlation coefficient lies between minus one and plus one. If in any exercise, the value of r is outside this particular range, it definitely indicates an error in calculation.
Y = a + bX, in the given linear equation, the intercept term is denoted by- a)a
- b)b
- c)X
- d)Y
Correct answer is option 'A'. Can you explain this answer?
Y = a + bX, in the given linear equation, the intercept term is denoted by
a)
a
b)
b
c)
X
d)
Y
|
|
Om Desai answered |
Y = a + bX, in linear equation, the intercept term is denoted by a. It is the point at which this line intersect at y-axis.
The value of coefficient of correlation is unaffected by- a)position of origin.
- b)change of origin.
- c)position of values.
- d)change of values.
Correct answer is option 'B'. Can you explain this answer?
The value of coefficient of correlation is unaffected by
a)
position of origin.
b)
change of origin.
c)
position of values.
d)
change of values.
|
Athul Yadav answered |
The value of coefficient of correlation is unaffected by change of origin. Correlation coeffecient always remains between -1 and +1.
A scatter diagram displaying plotted points on an upward sloping straight line denotes that X and Y has- a)positive correlation.
- b)zero correlation.
- c)perfect positive correlation.
- d)perfect negative correlation.
Correct answer is option 'C'. Can you explain this answer?
A scatter diagram displaying plotted points on an upward sloping straight line denotes that X and Y has
a)
positive correlation.
b)
zero correlation.
c)
perfect positive correlation.
d)
perfect negative correlation.
|
Jatin Singh answered |
Scatter diagram is a simple visual method for getting some idea about correlation between two variables. A scatter diagram displaying plotted points on an upward sloping straight line denotes a perfect positive correlation between X and Y.
Qualitative characterstics can be measured through- a)Karl Pearson’s coefficient of correlation.
- b)Spearman’s rank correlation.
- c)Scatter diagram.
- d)Fayol's diagram.
Correct answer is option 'B'. Can you explain this answer?
Qualitative characterstics can be measured through
a)
Karl Pearson’s coefficient of correlation.
b)
Spearman’s rank correlation.
c)
Scatter diagram.
d)
Fayol's diagram.
|
|
Shourya Goel answered |
Statistical series in which variables are not capable of quantitative measurement, the correlation can be measured by Spearman’s rank correlation. It includes qualitative characterstics like, honesty, beauty etc.
Correlation coefficient is denoted by- a)r
- b)p
- c)z
- d)g
Correct answer is option 'A'. Can you explain this answer?
Correlation coefficient is denoted by
a)
r
b)
p
c)
z
d)
g
|
|
Om Desai answered |
Correlation coefficient is denoted by r. If the two variables X and Y move in the same direction they are said to have positive relationship.
Correlation r contains no unit because- a)absolute number.
- b)it is a relative number.
- c)it denotes variables.
- d)it shows the value of attributes.
Correct answer is option 'B'. Can you explain this answer?
Correlation r contains no unit because
a)
absolute number.
b)
it is a relative number.
c)
it denotes variables.
d)
it shows the value of attributes.
|
Hardik Mittal answered |
Correlation always studies the relation between two variables. It measures co-variation and not causation.
If the values of a series is divided by a common factor, it is said to be- a)change in scale
- b)change in origin
- c)modification
- d)simplification
Correct answer is option 'A'. Can you explain this answer?
If the values of a series is divided by a common factor, it is said to be
a)
change in scale
b)
change in origin
c)
modification
d)
simplification
|
Aditya Kumar The Best answered |
The value of coefficient correlation remains unaffected by the change in origin and change in scale.
If the values of a series is added by a common number, it is said to be- a)change in scale.
- b)modification.
- c)simplification.
- d)change in origin.
Correct answer is option 'D'. Can you explain this answer?
If the values of a series is added by a common number, it is said to be
a)
change in scale.
b)
modification.
c)
simplification.
d)
change in origin.
|
|
Shourya Goel answered |
The value of coefficient correlation remains unaffected by the change in origin and change in scale.
Chapter doubts & questions for Correlation - Economics Class 11 2025 is part of Commerce exam preparation. The chapters have been prepared according to the Commerce exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Commerce 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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