Question

prepared a frequency series of the age of 25 of class XI in your school . 15,16,16,17,18,18,17,15,15,16,16,19,15,16,16,15,16,16,15,17,17,18,19,16,13,​

Answer 1

Explanation:

15+16+16+17+18+18+17+15+15+16+16+19+15+16+16+1 5+16+16+1517+17+18+19+16+13

------------------------------------------------------------------------

25

= 407

-------------

25

= 16.28