Question

Construct a cumulative frequency table from the following frequency distribution.

Daily wages (in ₹)	50 - 60	60 - 70	70 - 80	80 - 90	90 - 100
Numbers of workers	12	15	23	8	2

Answer 1

Daily wages (in ₹)	Numbers of workers (Frequency)	Cumulative frequency
50 - 60	12	12
60 - 70	15	12 + 15 = 27
70 - 80	23	27 + 23 = 50
80 - 90	8	50 + 8 = 58
90 - 100	2	58 + 2 = 60
	N = 60