Questions
Runs scored by a batsman in l0 innings are: 38,70,48, 34, 42, 55, 63, 46, 54, 44 The mean deviation is
a
8.6
b
6.4
c
10.6
d
9.6
detailed solution
Correct option is A
Arranging the given data in ascending order, we have 34,38, 42,44, 46, 48, 54, 55, 63,70, median, M=46+482=47 (∵n=10, median is the mean of 5th and 6th items)∴ mean deviation =Σxi−Mn=Σxi−4710=13+9+5+3+1+1+7+8+16+2310=8.6Talk to our academic expert!
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The following data give the distribution of heights of students:
| Height (in cm) | 160 | 150 | 152 | 161 | 156 | 154 | 155 |
| Number of students | 12 | 8 | 4 | 4 | 3 | 3 | 7 |
The median of the distribution is
799 666 8865
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