Question

if the medain of the distribution given below is 28.5 . Find the value of x and y

plzzz answer​

Answer 1

Answer:

Here, it is given that Median =28.5 and n=∑fi =60

Cummulative frequency table for the following data is given.

Here n=60⇒ n/2 =30

Since, median is 28.5, median class is 20−30

Hence, l=20,h=10,f=20,c.f.=5+x

Therefore, Median =l+( n/2 - cf )h

f

28.5=20+( 30−5−x )10

20

⇒28.5=20+ 25−x

2

⇒8.5×2=25−x

⇒x=8

Also, 45+x+y=60

⇒y=60−45−x

y=15−8

y=7.

Hence, x=8,y=7

Step-by-step explanation:

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