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a) mean = median = mode
b) mean = median = mode
c) mean > median > mode
d) mean< median < mode
If modal value is not clear in a distribution , it can be
ascertained by the method of
a) grouping
b) guessing
c) summarizing
d) trial and error
Shoe size of most of the people in India is No. 7 . Which
measure of central value does it represent ?
a).mean
b) second quartile
c) eighth decile
d) mode
The middle value of an ordered series is called :
a). 2nd quartile
b) 5th decile
c) 50th percentile
d) all the above
The variate values which divide a series (frequency
distribution ) into ten equal parts are called :
a). quartiles b) deciles c) octiles d) percentiles
For percentiles, the total number of partition values are
a) 10 b) 59
c) 100 d) 99
The first quartile divides a frequency distribution in the
ratio
a) 4 : 1
b) 1 :4
c) 3 : 1
d) 1 : 3
Sum of the deviations about mean is
a) Zero
b) minimum
c) maximum
d) one
Histogram is useful to determine graphically the value of
a) mean b) median
c)mode
d)all the above
Median can be located graphically with the help of
a) Histogram
b) ogives
c) bar diagram
d) scatter diagram
135 14. 15. II
16.
17.
18.
19.
20. Sixth deciles is same as
a) median
b) 50th percentile
c) 60th percentile
d) first quartile
What percentage of values lies between 5th and 25th
percentiles?
a) 5%
b) 20%
c) 30%
d) 75%
Fill in the blanks:
If 5 is subtracted from each observation of a set, then the
mean of the observation is reduced by _________
The arithmetic mean of n natural numbers from 1 to n is___
Geometric mean cannot be calculated if any value of the set
is _____________
Median is a more suited average for grouped data with ____
classes.
3rd quartile and _____ percentile are the same. III Answer the following questions:
21.
What do you understand by measures of central tendency?
22.
What are the desirable characteristics of a good measure of
central tendency.
23.
What is the object of an average?
24.
Give two examples where (i)Geometric mean
and(ii)Harmonic mean would be most suitable averages.
25.
Define median .Discuss its advantages and disadvantages as
an average.
26.
The monthly income of ten families(in rupees) in a certain
locality are given below.
Family
A...
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This note was uploaded on 01/18/2014 for the course BUS 100 taught by Professor Moshiri during the Winter '08 term at UC Riverside.
 Winter '08
 Moshiri
 Business

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