Question:

The 75th percentile is

A.

greater than d6

B.

less than d6

C.

equal to d6

D.

equal to d6

Answer» a. greater than d6

Question:

When the correlation coefficient r = ±1, the two regression lines:

A.

are perpendicular to each other

B.

are parallel to each other

C.

coincide

D.

do not exist

Answer» c. coincide

Question:

In a normal distribution Q.D = …………..

A.

sd

B.

sd

D.

d) √sd

Answer» a. sd

Question:

Population growth is mainly concerned with:

A.

total number of births

B.

number of male births

C.

number of female births

D.

none of the above

Answer» c. number of female births

Question:

A lock-out in a factory for a month is associated with the component of timeseries

A.

trend

B.

seasonal variation

C.

cyclic variation

D.

irregular variation

Answer» d. irregular variation

Question:

Statistics is ………………

A.

science only

B.

art only

C.

science and art

D.

neither science nor art

Answer» c. science and art

Question:

The age specific death rate for the babies of age less than one year is specifically called:

A.

neonatal death rate

B.

infant mortality rate

C.

maternal mortality rate

D.

foetal death rate

Answer» b. infant mortality rate

Question:

In India collection of vital statistics started for the first time in

A.

1720

B.

1886

C.

1969

D.

1946

Answer» b. 1886

Question:

Complete count of the heads of people of a country is known as:

A.

census

B.

vital statistics

C.

demography

D.

none of the above.

Answer» a. census

Question:

Increase in Population indicates

A.

nrr = 1

B.

nrr < 1

C.

nrr >1

D.

none of these

Answer» c. nrr >1