Question

frnds help me in this question from statistics.... class10 I will mark it as brainliest.. plz

Answer 1

n = 60 
 n/2 = 30

Median class is 20 – 30

c f = 25 + x

l = 20,

cf = 5 + x ,

f = 20 and h = 10\

l+(30-5-x)/20*10

25-x/2=8.5

=8

Now, from cumulative frequency, we can find the value of x + y 

 x = 8 and y = 7