ComprehensionDirections: Consider the following data and answer questi

ComprehensionDirections: Consider the following data and answer questions:S. No.Class limitFrequency1.101-20042.201-300123.301-400244.401-500405.501-600166.601-700127.701-800108.801-90059.901-100021. 1252. 243. 404. 118

Answer» Correct Answer - Option 1 : 125

Cumulative frequency:

The accumulated frequency above or below a class boundary is known as cumulative frequency.
it is useful to know how many or what proportion of districts less than or more than certain specified population density levels exists.
the fractiles are plotted in Ogive

Example:

S. No.	Class limit	Class boundary	Limits	Frequency	Cumulative frequency less than	Cumulative frequency more than
1.	101-200	100.5-200.5	100.5	4	0	125
2.	201-300	200.5-300.5	200.5	12	4	121
3.	301-400	300.5-400.5	300.5	24	16	109
4.	401-500	400.5-500.5	400.5	40	40	85
5.	501-600	500.5-600.5	500.5	16	80	45
6.	601-700	600.5-700.5	600.5	12	96	29
7.	701-800	700.5-800.5	700.5	10	108	17
8.	801-900	800.5-900.5	800.5	5	118	7
9.	901-1000	900.5-1000.5	900.5	2	123	2
Total			1000.5	∑f_i = 125	125	0

In general, the cumulative frequency (less than) is considered as the cumulative frequency for the whole data set.

Therefore, the cumulative frequency of the entire data set is 125.