For any collection of n items,
∑x
n
0
A data has 25 observations (arranged in descending order). Which observation represents the median?
12th
13th
14th
15th
The median class of the following distribution is
20 - 30
40 - 50
30 - 40
50 - 60
The mode when median is 125.6 and mean is 128 is
120.8
119.7
120.5
119.8
Which of the following is true?
Mode = 3 Median + 2 Mode
Mode = 3 Median - 2 Mean
Mode = 2 Median + 3 Mode
Mode = 2 Median - 3 Mean
If mode = 80 and mean = 110 then the median is
110
120
100
90
For the following frequency distribution
the sum of upper limit of the median class and the lower limit of the modal class is
95
85
Consider data
, then
Σ fi =
50
51
52
53
The mean and median of a uni - nodal grouped data are 72.5 and 73.9 respectively. Then mode is
73
73.5
75.4
76.7
The class mark of a class interval is
lower limit + upper limit
upper limit - lower limit
1/2(lower limit + upper limit)
1/4(lower limit + upper limit)
