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Question no. B5

Question no. B5 8-1.
deviaiton.
Rangeofdata 7.8.2. 1, 3. 13, 18 is
(2) 15
(1) 10
Coefficient Of range 5, 2, 3.4, 6, 8, 10 is
2
3
5
(4) 11
1
2
The scores of a batsman in ten innings are : 38, 70, 48, 34, 42, 55. 63, 46, 54, 44. Find the mean
deviation about median.
5
44
5
(3) 2-1
5
The mean deviation about median of variates 13, 14, 15,
(1) 1936
(2) 21.5
(3) 23.5
42
5
, 99, 100 is
(4) 22
B-5
The mean deviation of an ungrouped data is 50. If each observation is increased by 2%, then the new
mean deviation is
(1) 50
(2) 51
(3) 49
(4) 50.5
B-6. The mean deviation of an ungrouped data is 80. If each observation is decreased by 5%, then the new
mean deviation is
(1) 76
(2) 77
(3) 78
(4) 79
, ..... a + 2nd is
B-7.
B-8.
The mean deviation from mean of the observations a, a + d, a + 2d .
+ 1)d2
(1)
3
2
2
(2n+1)
Mean deviation frorn the mean for the observations — I, 0, 4 is
14
3
2
3