What is equal to cumulative frequency of last class in less than cumulative frequency distribution?

\sum f

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100

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\sum x

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20

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Solution

The correct option is A $\sum f$
The cumulative frequency of last class in less than cumulative frequency distribution is always equal to $\sum f$
Example: Here the total frequency is $\sum f = 70$
So, the last class in less than cumulative frequency distribution is always equal to $\sum f$

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Similar questions

Class Marks	$10$	$22$	$34$	$46$	$58$	$70$
Frequency	$6$	$14$	$20$	$21$	$9$	$5$

Marks Obtained	Less than 5	Less than 10	Less than 15	Less than 20	Less than 25
No. of Students (Cumulative)	4	6	10	13	17

60

35

60

25

Class-Interval (More than)	10	20	30	40	50	60	70	80
Frequency	124	119	107	84	55	31	12	2

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