A) 8.6
B) 6.4
C) 10.6
D) 9.6
Correct Answer: A
Solution :
[a] Arranging the given data in ascending order, we have 34, 38, 42, 44, 46, 48, 54, 55,63, 70, Median, \[M=\frac{46+48}{2}=47\] (\[\therefore n=10\], median is the mean of 5th and 6th items) \[\therefore \]Mean deviation\[=\frac{\Sigma \left| {{x}_{i}}-M \right|}{n}\] \[=\frac{\Sigma \left| {{x}_{i}}-47 \right|}{10}\] \[=\frac{13+9+5+3+1+1+7+8+16+23}{10}=8.6\]
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