Question

guys please solve the question in the attachment

step by step answer please.




please answer ​

Answer 1

Answer:

x=20 and y=7

Step-by-step explanation:

Given,

fn cf

5 5

8 13

x 13+x

15 28+x

y 28+x+y

5 33+x+y = 60

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

N=60, Median=28.5 then, class interval: 20-30

l=20 and h=10, f=x and cf=13

Now,

M = l+[(n/2 - cf)/f]h

28.5 = 20+[(30-13)/x]10

28.5 = 20+170/x

170/x = 8.5

x = 170/8.5 = 20.

33+x+y=60

33+20+y=60

y = 60-53 = 7.