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//Caption: Mode of grouped data
//Example3.10
//Page47
clear;
clc;
X = [0,2;2,4;4,6;6,8;8,10;10,12;12,14;14,16;16,18];
f = [10,15,20,30,8,5,4,3,5];
[Maxf,i]= max(f);
L = X(i,1); //Lower Limit of the Modal class
C = diff(X(i,:)); //Width of the class interval
f1 = abs(f(i)-f(i-1));//Absolute difference between freq. of the modal class and
//that of its immediately preceding class
f2 = abs(f(i)-f(i+1));//Absolute difference beween freq. of the modal class and
//that of its immediately succeeding class
Mode = L+((f1/(f1+f2))*C);
disp(Mode,'Mode of the annual revenues of the firms is =')
disp('crores')
//Result
//Mode of the annual revenues of the firms is =
//
// 6.625
//
// crores
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