Deck 2: Measures of Dispersion, Skewness, and Index Numbers

Question 1

The formula of Q.D

A)(Q3-Q1)/2
B)(Q2-Q3)/2
C)(Q2-Q1)/2
D)none

Answer 1

(Q3-Q1)/2

Question 2

Measures of dispersion are called averages of ----- order

A)First
B)second
C)Third
D)None

Answer 2

second

Question 3

----- is the difference between highest and lowest values in a series

A)Range
B)Mean
C)Dispersion
D)None

Answer 3

Range

Question 4

The most important measure of dispersion

A)Range
B)Mean deviation
C)Standard deviation
D)Quartile deviation

Question 5

Square of Standard Deviation is known as

A)Range
B)Variance
C)Quartile
D)none

Question 6

For comparing variability in scores of 2 Batsman we can use

A)Standard Deviation
B)Mean
C)Coefficient of variation
D)mode

Question 7

Variance = -----

A)(S.D)²
B)?S.D
C) (S.D)³
D)1/S.D

Question 8

In Standard deviation , deviations are taken only from ---- values of series

A)Mean
B)Median
C)Mode
D)Variance

Question 9

Co. Efficient of variation is equal to

A)(S.D/Mean)x100
B)(S.D/Range )x100
C)(Mean/ S.D)x100
D)None

Question 10

----- means lack of symmetry

A)Skewness
B)Kurtosis
C)Range
D)None

Question 11

A distribution is skewed if Mean , Median , Mode are

A)Equal
B)Not equal
C)Symmetric
D)None

Question 12

----- is a measure of peakedness

A)Skewness
B)Kurtosis
C)Range
D)Variance

Question 13

Skewness may be ----

A)+ or -
B)Zero
C)Both
D)None

Question 14

When the frequency curve is more peaken than normal curve it is called

A)Leptokurtic
B)Platy
C)Mesokurtic
D)None

Question 15

----- are devices for measuring differences in the magnitude of a group of related variables

A)Index numbers
B)Time series
C)Standard deviation
D)Mean

Question 16

Index numbers are expressed in

A)Average
B)Percentage
C)Both
D)None

Question 17

In Laspear's Index number ---- year quantities are used

A)Base
B)Current
C)Average
D)None

Question 18

----- is not a factor responsible for seasonal variation

A)Climatic condition
B)social customs
C)Religious functions
D)Operation condition

Question 19

laspeyer's method and Paashe's method do not satisfy

A)Unit test
B)Factor reversal test
C)Time reversal test
D)None

Question 20

Fisher's formula satisfies ---- test

A)Unit test
B)Time reversal Test
C)factor Reversal test
D)All

Question 21

----- is the easiest of all the methods for measuring trend

A)Freehand curve
B)Method of semi average
C)Method of least squres
D)Method of moving curve

Question 22

---- is a set of values arranged in chronological order

A)Time series
B)Index number
C)Both
D)None

Question 23

Cyclic variation Occur at intervals of more than ---- year

A)1
B)2
C)3
D)4

Question 24

Moments are used to find a measure of

A)Central tendency
B)Dispersion
C)Skewness
D)All these