Question:

Which average is affected most by extreme observations

A.

mode

B.

medium

C.

geometric mean

D.

arithmetic mean

Answer» c. geometric mean

Question:

Earthquake is an example of

A.

secular trend

B.

seasonal variation

C.

cyclical variation

D.

irregular variation

Answer» d. irregular variation

Question:

The major purpose of price index is to measure change in the …………

A.

standard of living

B.

gold content of money

C.

buying power of money

D.

capacity to produce

Answer» c. buying power of money

Question:

The positionl value which divide the data into 100 equal parts are

A.

decile

B.

percentile

C.

quartiles

D.

octiles

Answer» b. percentile

Question:

In case of simple correlation, the number of variables involved are

A.

1

B.

2

C.

3

D.

4

Answer» b. 2

Question:

If b1 and b2 are the regression coefficient of Y on X and that of X on Y respectivelyand r is the correlation coefficient between X and Y then:

A.

=

B.

=

C.

=

D.

ℎ

Answer» d. ℎ

Question:

The coefficient of correlation:

A.

always positive

B.

always negative

C.

cannot be negative

D.

can be both positive and negative

Answer» d. can be both positive and negative

Question:

Which one of the following index numbers is based on Geometric Mean ?

A.

lasperyres index number

B.

fischer’s index number

C.

paasches index number

D.

bowley’s index number

Answer» b. fischer’s index number

Question:

The measure which is not used for mortality is

A.

crude death rate

B.

age specific death rate

C.

standardised death rate

D.

crude birth rate

Answer» d. crude birth rate

Question:

Consumer price index number indicates

A.

the general price level

B.

the wholesale price level

C.

export price

D.

all of these

Answer» a. the general price level