What measure of central tendency is obtained graphically as the x - coordinate of the point of intersection of the two ogive for grouped data?
Mean
Median
Mode
None of these
The mode when median is 125.6 and mean is 128 is
120.8
119.7
120.5
119.8
For any collection of n items,
∑x
n
0
The arithmetic mean of first n natural numbers is
n/2
n/2 + 1
(n+1)/2
(n-1)/2
The median class of the following distribution is
20 - 30
40 - 50
30 - 40
50 - 60
Consider the data
The lower limit of the modal class is
115
165
145
175
The formula is used to determine
All the three above
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
The mean of 9, 11, 13, P, 18, 19 is P. Then the value of P is
10
12
14
15
