Question

The table below- shows the daily expenditure on food of $25$ households in a locality.

Daily expenses (in Rs.)	100-150	150-200	200-250	250-300	300-350
No. of households	4	5	12	2	2

Find the mean daily expenses on food by a suitable method

Answer 1

Daily Expense	Households (fi)	Mid Point (xi)	fi xi
100 - 150	4	125	500
150 - 200	5	175	875
200 - 250	12	225	2700
250 - 300	2	275	550
300 - 350	2	325	650
	25		5275

Mean $=\frac{\sum fixi}{\sum fi}=\frac{5275}{25}=211$