Question

In the given frequency distribution table the median class is class 0-10,10-20,20-30,30-40,40-50 frequency 5,8,12,15,20

Answer 1

Answer:

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Step-by-step explanation:

here to find median class

we need to first of all find cumulative frequencies of all classes

so basically here sum of all frequencies is 60

thus then N=60

so hence N/2=60/2

=30

cumulative frequencies of given classes is as follows

0-10=5

10-20=5+8=13

20-30=13+12=25

30-40=25+15=40

40-50=40+20=60

so the class whose cumulative frequency is just greater than 30 is class 30-40 and the corresponding cumulative frequency is 40

hence class 30-40 is our median class