Deck 3: Statistical Methods, Averages, and Measures of Dispersion

Question 1

Statistical methods are most dangerous tools in the hands of

A)Expert
B)Inexpert
C)Business man
D)All of them

Answer 1

Inexpert

Question 2

------ is capable of more algebraic treatment

A)arithmetic mean
B)Median
C)Both
D)None

Answer 2

arithmetic mean

Question 3

------ is considered to best average

A)arithmetic mean
B)Median
C)Mode
D)None

Answer 3

arithmetic mean

Question 4

------ is used whenever the relative importance of the items in a series differs

A)Simple arithmetic mean
B)Weighted arithmetic mean
C)Geometric mean
D)None

Question 5

Weighted averages are used in the calculation of

A)death rate
B)birth rate
C)Both
D)None

Question 6

Median is a ----- average

A)Mathematical
B)Positional
C)Both
D)None

Question 7

----- is not capable of algebraic treatment

A)arithmetic mean
B)Median
C)Both
D)None

Question 8

---- is not a mathematical average

A)A.M
B)G.M
C)H.M
D)mode

Question 9

----- is ill-defined

A)arithmetic mean
B)Median
C)Mode
D)None

Question 10

----- divides the data into 4 equal parts

A)Quartiles
B)Mean
C)Median
D)Range

Question 11

---- are known as averages of first order

A)Measures of central tendency
B)Measures of dispersion
C)Averages
D)None

Question 12

Simplest possible measure of dispersion is

A)Range
B)Q.D
C)M.D
D)Variance

Question 13

---- cannot be computed in the case of open ended distribution

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

Question 14

Standard deviation of a series can have minimum value of -----

A)Zero
B)One
C)Two
D)Three

Question 15

In ---- signs are ignored

A)S.D
B)Mean
C)Both
D)None

Question 16

----- is defined as the reciprocal of the mean of the reciprocal of these values

A)H.M
B)G.M
C)A.M
D)S.D

Question 17

------ is used in averaging rates , times etc

A)H.M
B)G.M
C)A.M
D)Mode

Question 18

Measures of dispersion are statistical devices to measure the ----- in a series

A)Variability
B)Convertibility
C)Flexibility
D)None

Question 19

----- is a geometric method of measuring variability

A)Lorenz Curve
B)Geometric curve
C)Both
D)None

Question 20

The most commonly used relative measure of dispersion

A)Coefficient of variation
B)Q.D
C)S.D
D)None

Question 21

Range is an ---- measure

A)Absolute
B)Relative
C)Both
D)None

Question 22

Range =-----

A)H-L
B)L-H
C)Both
D)None

Question 23

Find range from the following values 23 ,32 ,85, 32, 42, 10, 20, 18, 28

A)70
B)75
C)85
D)32

Question 24

--- is used in quality control

A)Mean
B)Median
C)Range
D)Quartiles

Question 25

Q . D is ---- of more algebraic treatment

A)Capable
B)Not capable
C)either capable or not
D)None