
Q12 Calculate the mean deviation about median age for the age distribution of 100 persons given below: Age 1620 2125 2630 3135 3640 4145 4650 5155 Number 5 6 12 14 26 12 16 9 Ans: Our Experts will give the answer soon.
This branch of Mathematics deals with a large number of data. When data is large it is very difficult to handle and we can not reach the exact result if we do it manually. Some methods are necessary for this and these methods will be provided in this chapter. Some topics are studied in earlier classes such as 8,9,10. Now, we extend our periphery. This chapter consists of measures of dispersion; mean deviation, variance and standard deviation of ungrouped/grouped data, analysis of frequency distributions with equal means but different variances.
Download pdf of NCERT Solutions for Class Mathematics Chapter 15 Stastistics
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Q12  Calculate the mean deviation about median age for the age distribution of 100 persons given below: Age 1620 2125 2630 3135 3640 4145 4650 5155 Number 5 6 12 14 26 12 16 9 
Ans:  Our Experts will give the answer soon. 
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