Find the mode of the following:7, 9, 8, 7, 7, 6, 8, 10, 7, 6
6
7
8
9
The mean of 6 variate is 8. Five of them are 8, 15, 0, 6, 11. Find the sixth variate.
5
3
If the mean of 6, 4, 7, a and 10 is 8. Find the value of 'a'.
10
13
12
The marks obtained by 19 students of a class are given below: 27, 36, 22, 31, 25, 26, 33, 24, 37 32, 29, 28, 36, 35, 27, 26, 32, 35, 38. Find Median
23
25
37
29
Four variates are 2, 4, 6,and 8. The frequencies of the first three variates are 3,2 and 1 respectively. If the mean of the variates is 4 then find the frequency of the fourth variate.
2
1
The mean age of 10 boys is calculated to be 16 years. Later it was detected that one boy's age was taken 12 years more than the actual; and another boy's age was taken 7 years less than the actual. Find the correct mean of the ages of the boys.
15 years
15.1 years
15.6 years
15.5 years
The mean of the number 6, y, 7, x and 14 is 8. Express y in terms of x.
y = 13 - x
y = 9 - x
y = 6 - x
y = 14 - x
Find the mean of following set of numbers.11, 14, 23, 26, 10, 12, 18 and 6
20
22.5
15
The marks obtained by 19 students of a class are given below: 27, 36, 22, 31, 25, 26, 33, 24, 37 32, 29, 28, 36, 35, 27, 26, 32, 35, 38. Find Lower Quartile.
26
33
27
35