Bachelor of Arts in Economics (BA Economics)

A pattern in a times-series model that occurs over a duration of more than a year iscalled a ___________ variation

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Question:

A pattern in a times-series model that occurs over a duration of more than a year iscalled a ___________ variation

A.

trend

B.

seasonal

C.

cyclical

D.

regressive

Answer» c. cyclical

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

In perfect linear model, we assume that regression coefficient remains _________

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Question:

In perfect linear model, we assume that regression coefficient remains _________

A.

variable until some point

B.

variable through out

C.

constant to some point

D.

constant through out

Answer» d. constant through out

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

If A is a square matrix of order ‘n’ and I is the unit matrix of the same order, then AI is equal to

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Question:

If A is a square matrix of order ‘n’ and I is the unit matrix of the same order, then AI is equal to

A.

a

B.

ia

C.

i

D.

both (a) & (b)

Answer» d. both (a) & (b)

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

The correlation coefficient between X and Y will have positive sign when

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Question:

The correlation coefficient between X and Y will have positive sign when

A.

x is increasing, y is decreasing

B.

both x and y are increasing

C.

x is decreasing, y is increasing

D.

there is no change in x and y

Answer» b. both x and y are increasing

Note: The above multiple-choice question is for all general and Competitive Exams in India.