Question:

Which is the most widely used method of calculating correlation?

A.

scatter diagram

B.

karl pearson’s

C.

charles spearman’s

D.

none of the above

Answer» b. karl pearson’s

Question:

Mean deviation is minimum when deviations are taken from

A.

mean

B.

median

C.

mode

D.

zero

Answer» b. median

Question:

Sex ratio is defined as

A.

× 100

B.

× 1000

C.

× 100

D.

× 1000

Answer» b. × 1000

Question:

In case there is no relation between the variables, value of coefficient of correlationwill be:

A.

-2

B.

+1

C.

+2

Answer» d. 0

Question:

Circle diagram is also called

A.

pie diagram

B.

pictogram

C.

sectors

D.

none of these

Answer» a. pie diagram

Question:

The relationship between x and y is y = 2x + 1. The correlation between x and y is:

A.

1

B.

-1

D.

4

Answer» a. 1

Question:

is the formula for calculating

A.

fishers index

B.

bowley’s method

C.

laspeyre’s index

D.

paasche’s index

Answer» b. bowley’s method

Question:

Average is a measure of ………….

A.

central tendancy

B.

dispersion

C.

symmetry

D.

concentration

Answer» a. central tendancy

Question:

Paasches index number is based on

A.

base year quantity

B.

current year quantity

C.

day year quantity

D.

none

Answer» b. current year quantity

Question:

Scatter diagram is

A.

mathematical method of finding out correlation

B.

positional method of finding out correlation

C.

graphic method of finding out correlation

D.

none of the above

Answer» c. graphic method of finding out correlation