Question

find mean and median of below data
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Answer 1

Answer:

Mean = Sum of observation/no. of observation

= 15+18+21+29+17/5

= 100/5

= 20. ANS.

Median = {(n+1)/2} th term

=> Change the data in ASCENDING ORDER

15, 17, 18, 21, 29

Now, In formulae (n = No. of terms )

Median = {(5+1)/2} th term

= 6/2 th term

= 3 th term

The third term in the data after changing it in ASCENDING ORDER is:-

18. ans.