Answers

2014-12-08T10:34:45+05:30
From the table:
Modal class = 20 - 25
l = 20; h = 5; f1 = 11; f0 = 10; f2 = 0

Mode = l + [ \frac{f_1-f_0}{2f_1-f_0-f_2}] * h

=20 + [ \frac{11-10}{2(11)-10-0}] * 5

20 + [ \frac{1}{12}] * 5

= 20 + 0.4

= 20.4
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