Question

calculate correlation from the following data.
x: 100 200 300 400 500 600 700
y : 30 50 60 80 100 110 130
rom the follos​

Answer 1

Answer:

Here frequency of class interval 400−500 is maximum.

So, it is the modal class

Now, l = lower limit of modal class = 400

f1= frequency of modal class =50

f0= frequency of class preceding the modal class =45

f2=frequency of class succeeding the modal class =30

h= class interval width =100

So, Mode =l+(2f1−f0−f2f1−f0)×h

=400+(2×50−45−3050−45)×100

=400+(100−755)×100

=400+20

=420

Mode=420