G.M of 4, 5, 20, 25 is ______.
8
9
10
11
The relationship between mean, median and mode for a moderately skewed distribution is
Mode = 3Median - 2 Mean
Mode = 2 Median - Mean
Mode = 3 Median - 2 Mean
Mode = 2 Median - 3 Mean
For the following data, mean of x is found to be 7.3. The missing frequency is ______ x: 5 6 7 8 9 f : 4 6 12 - 8
7
Which of the following is not a measure of dispersion______.
Variance
Mean Deviation
Standard Deviation
Mode
Consider the following statements:Mode can be computed from histogramMedian is not independent of change of scaleVariance is independent of change of origin and scale Which of these is/are correct ?
Only ( a )
Only ( b
(a ) and ( b )
(a ), (b ) and ( c )
The temperature during a month in summer are recorded as ( in F ) 99, 78, 80, 94, 92, 76, 86, 96 . The mediantemperature is
76
99
92
89
The AM of three sizes 3, 4 and 2.5 weighted respectively by the numbers 15, 5 and x is found to be 3. Then x = ________.
5
In a moderately skewed distribution the value of mean and median are 5 and 6 respectively. Then the value of mode is _______.
16
21
One of the methods of determining mode is ______.
mode = 2 median - 3 mean
mode = 2 median + 3 mean
mode = 3 median - 2 mean
mode = 3 median + 2 mean
G.M of 4, 5, 20, 25 is
