ELEMENTS OF STATISTICS, SET 13

ELEMENTS OF STATISTICS

Q.1

The basic pay, D.A. etc. of various employees can be determined on the basis of

Ans. 

Cost of living index number.

Q.2

The correlation between the temperature and length of an iron bar is

Ans. 

Perfect and positive.

Q.3

Prof. Karl Pearson was a

Ans. 

Biometrician.

Q.4

What is the name of any population constant ?

Ans. 

Parameter.

Q.5

What is the identification of the index of precision of an estimator ?

Ans. 

Standard error.

Q.6

The stratified random sampling is applicable when the population is

Ans. 

Heterogenous.

Q.7

Sampling error occur due to __ selection of samples and __ method of analysis.

Ans. 

Improper, faulty.

Q.8

What will be the r egr ession coefficient of Y on X and X on Y, if a constant a is added to each values of X and Y?

Ans. 

It will remain same.

Q.9

Given two repression lines X+2Y=5 and 2X+3Y=8 and variance X=12, what is the value of standard deviation of Y ?

Ans. 

2.

Q.10

The limit of partial correlation coefficient is

Ans. 

–1 to 1.

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