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20 questions
If n is the total number of observations, the class whose cumulative frequency is greater than 2n This class is called the median
TRUE
FALSE
For a certain distribution,mode and median were found to be 100 and 1250 respectively. Find mean for this distribution using an empirical relation
1375
1265
1145
1550
The wickets taken by a bowler in 10 cricket matches are as follows: 2,6,4,5,0,2,1,3,2,3 Find the mode of the data
2
3
4
5
Can the mean, median and mode of data coincide?
Yes
No
The mean, median and mode of grouped data are always different
TRUE
FALSE
The median of frequency distribution is found graphically with the help of
a histogram
a frequency curve
a frequency polygon
ogives
The class mark of the class 5.5-20.5 is
15.5
20.5
18
5
Find the class mark of class 35-55
45
46
47
48
The graphical representation of a cumulative frequency distribution is called
Bar graph
Histogram
Frequency polygon
Ogive
An ogive is used to determine
Standard deviation
Median
Mode
Mean
In a frequency distribution the class having maximum frequency is called the modal class
TRUE
FALSE
The abscissa of the point of intersection of less than type and more than type cumulative frequency curves of a grouped data gives its
Mean
Median
Mode
Class
The relationship between mean, median and mode is
.............median = 2 .......... + ...........
2,median, mode
3,median, mode
2,mean, mode
3,mean, mode
Which one of the following measures is determined only after the construction of cumulative frequency distribution?
Mean
Median
Mode
None of the above
Two ogives less than and more than type for the same data intersect at the point P. The y-coordinate of P represents
Modal
Range
Cumulative frequency of the median class
Median
If the median of the data 4, 7, x-1, x-3, 16, 25 written in ascending order is 13 then x is equal to
13
14
15
16
In the class interval 50-55 what is the Upper limit?
50
55
49.5
54.9
The mode of a frequency distribution is obtained graphically from
a frequency curve
a frequency polygon
a histogram
an ogive
An ........... is a freehand graph showing the curve of a cumulative frequency distribution
Ogive
Bar graph
histogram
None of the above
It is assumed that the frequency of each interval is centred around its
mid point
lower limit
upper limit
none of the above
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