Question

answer please quartlie 3 nikal hi​

Answer 1

First arrange them either in assessing order or in dissessing order

I will arrange it in assessing order

X=7,15,20,32,35,39,45

F=12,2.26,25,8,42,22,28. N=139.26(adding of all frequency)

CF=12,14.26,39.26,47.26,89.26,111.26,

139.26.

Q3=3(N+1)/4th item(as quartile devide a

series into 4 equalparts)

Q3=3(139.26+1)/4th item

=3(140.26)/4 th item

=3×35.06 th item

=105.18 th item

=39. (Ans)