Question

Convert the following frequency distribution to a more than type cumulative frequency distribution Marks obtained - 0-20 20-40 40-60 60-80 80-100

Number of students 5 9 12 8 6

Answer 1

cumulative frequency(cf) can find from the given frequency by adding up the corresponding preceding frequency (fi).

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.here;5+9=14

14+12=26

26+8=34

and so on.

Step-by-step explanation:

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To check whether you are right

( sum of fi = last cf )

here 40

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hope it helps you