Question 1

Statistical data are collected

Accepted Answer

A) without any purpose 
B) for a given purpose 
C) any purpose 
D) none of these B

Question 2

Which of the following represents statistics

Accepted Answer

A) a single value 
B) only two values in a set 
C) a group of values in a set 
D) none of these C

Question 3

Statistics is ________________

Accepted Answer

A) an art 
B) a science 
C) both 
D) none of these C

Question 4

seasonal variation means the variations occurring within

Accepted Answer

A) a number of year 
B) parts of a year 
C) parts of a month 
D) none of the above

Question 5

Index numbers help

Accepted Answer

A) in framing of economic policies 
B) in assessing the purchasing power of mony 
C) for adjusting national income 
D) all the above

Question 6

Statistics is defined in terms of numerical data in the___________

Accepted Answer

A) singular sense 
B) plural sense 
C) either a or b 
D) both a and b

Question 7

Laspeyer's index formula use the weights of the

Accepted Answer

A) base year 
B) current year 
C) average of the weights of a number of year 
D) none of the above

Question 8

Index number is a ______________

Accepted Answer

A) measure of relative changes. 
B) a special type of an average. 
C) a percentage relative 
D) all the above

Question 9

Method of least squares to fit in the trend is applicable only if the trend is____________

Accepted Answer

A) linex 
B) parabolic 
C) both a & b 
D) neither a nor b

Question 10

Find the sum of the deviation of the variable values 3,4,6,8,14 from their mean

Accepted Answer

A)  5 
B) 0 
C) 1 
D) 7

Question 11

Secular trend is indicative of long term variation towards

Accepted Answer

A) increase only 
B) decrease only 
C) either increase or decrease 
D) none of the above

Question 12

The mean of a observation is x. If k is added to each observation then new mean is_______________

Accepted Answer

A) x 
B) x+k 
C) x-k 
D) kx

Question 13

Statistics does not study

Accepted Answer

A) individuals 
B) groups 
C) aggregates 
D) all above

Question 14

Index numbers are expressed:

Accepted Answer

A) in percentages 
B) in ratios 
C) in terms of absolute value 
D) all the above

Question 15

If the index number is independent of the units of measurement ,then it satisfies

Accepted Answer

A) time reversal test 
B) factor reversal test 
C) unit test 
D) all the above

Question 16

Statistical methods

Accepted Answer

A) collection of data 
B) classification 
C) analysis and inter correlation of data 
D) all these

Question 17

If the prices of all commodities in a place have increased 1.25 times more on the base period price. The index number of prices of that place is now

Accepted Answer

A) 125 
B) 150 
C) 225 
D) None of these

Exam 2: Index Numbers and the Role of Statistics in Data Analysis