The range of the first 10 prime numbers 2,3,5,7, 11, 13,17,19,23,29 is
28
26
29
27
For any collection of n, items,
n
(n - 2)
(n - 1)
0
For any collection of n items,
The variance of 10,10,10,10 is
10
√10
5
Given and n = 12. The coefficient of variation is
25
20
30
Mean and SD of a data are 48 and 12 respectively. The coefficient of variation is
42
48
SD of a collection of data is 2√2. If each value is multiplied by 3, then the SD of the new data is
√12
4√2
6√2
9√2
If t is the standard deviation of x, y, z then the standard deviation of x + 5, y + 5, z + 5 is
3/4
t + 5
t
x y z
Which of the following is not a measure of central tendency?
Median
S.D
Mean
Mode
The mean of 9,11,13,p,18,19 is P. Then the value of p is
12
14
15
