Question

Find mean deviation about mean:

11,3,0,7,2,6,4,7​

Answer 1

11th

Maths

Statistics

Mean Deviation

Find the mean deviation abo...

Statistics

Find the mean deviation about the median of the following data:

11,3,8,7,5,14,10,2,9.

Easy

Answer

Arranging the given observations in ascending order,

2,3,5,7,8,9,10,11,14

Here, n=9, which is odd.

So median,M=5  

th

 observation =8  

Calculating the deviation : ∣x  

i

​  

−M∣ we get,

−6,−5,−3,−1,0,1,2,3,6.

∴M.D(M)=  

n

∑∣x  

i

​  

−u∣

​  

=  

9

27

​  

=3

Thus, M.D(M)=3.