Question:

Fertility rates mainly depend on

A.

total population

B.

total female population

C.

female population of child bearing age

D.

number of newly born babies

Answer» b. total female population

Question:

Purchasing power of money

A.

price index × 100

B.

100

C.

100/

D.

real wage

Answer» c. 100/

Question:

In a Histogram bars……………….

A.

touch each other

B.

do not touch

C.

either way

D.

neither way

Answer» a. touch each other

Question:

When variations in the values of two variables have a constant ratio, there will be

A.

linear correlation

B.

zero correlation

C.

non-linear correlation

D.

none of the above

Answer» a. linear correlation

Question:

The sum of squares of deviations from arithmetic mean is ………

A.

maximum

B.

minimum

C.

zero

D.

one

Answer» b. minimum

Question:

Meaures of dispersion which ignores the sign is……………

A.

mean deviation

B.

range

C.

quartile deviation

D.

standard deviation

Answer» a. mean deviation

Question:

Diagrams and graphs are the tools of…………………

A.

collection of data

B.

analysis of data

C.

summarisation of data

D.

presentation of data

Answer» d. presentation of data

Question:

Harmonic Mean is the ………………of arithmetic Mean

A.

reciprocal

B.

substitute

C.

both of these

D.

none of these

Answer» a. reciprocal

Question:

As the value of X increases, if value of Y decreases, then coefficient of correlationwill be

A.

positive

B.

negative

C.

zero

D.

none of the above

Answer» b. negative

Question:

As the value of X increases, if Y also increases, then coefficient of correlation willbe

A.

positive

B.

negative

C.

zero

D.

none of the above

Answer» a. positive