UPSC CDS Math Statistics Questions

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Question : 40 of 63
 
Marks: +1, -0
The age distribution of 40 children is as follows :
Age (in years5-66-77-88-99-1010-11
No. of children4791262

Consider the following statements in respect of the above frequency distribution :
1. The median of the age distribution is 7 years.
2. 70% of the children are in the age group 6-9 years.
3. The modal age of the children is 8 years.
Which of the above statements are correct?
[2016 CDS-I]
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