Given and n = 12. The coefficient of variation is
25
20
30
10
If the variance of 14,18, 22, 26,30 is 32, then the variance of 28,36,44,52,60 is
64
128
32√2
32
Coefficient of range is calculated using the formula
L - S
L + S
If the variance of a data is 12.25, then the S.D is
3.5
3
2.5
3.25
Variance of the first 11 natural number is
√5
√10
5√2
The greatest value of a collection of data is 72 and the least value is 28. Then the coefficient of range is
44
0.72
0.44
0.28
The average age of 5 students is 60 years, then their total age =
300
250
200
400
Mean and SD of a data are 48 and 12 respectively. The coefficient of variation is
42
28
48
If the SD of a set of data is 1.6, then the variance is
0.4
2.56
1.96
0.04
Which of the following is not a measure of central tendency?
Median
S.D
Mean
Mode
