The mode of the following distribution of marks obtained by a group of students is approximately Marks Scored 15-25 25-35 35-45 45-55 55-65 65-75 No. of Students 8 20 28 30 10 4

AP ICET 2019 Shift 2 Paper

Question : 143 of 200

Marks: +1, -0

The mode of the following distribution of marks obtained by a group of students is approximately

Marks Scored	15-25	25-35	35-45	45-55	55-65	65-75
No. of Students	8	20	28	30	10	4

Solution:

f=30, f_{1}=28, f_{2}=10,L=45

L+\;{f-f_{1}}/{f-f_{1}+f-f_{2}} & ×=45+\;{2}/{2+20}×10

=45+0.9=45.9

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