Question

The following data represents the weekly wages (in ₹) of 15 workers in a factory:
900, 850, 800, 850, 750, 950, 900, 950, 800, 750, 900, 750, 800 and 850.
Prepare a frequency distribution table. Then find,
(i) how many workers are getting less than ₹ 850 per week ?

Answer 1

Step 1: Preparing the frequency distribution table

Weekly wages (in ₹)	Tally-marks	Frequency
750	|||	3
800	||||	4
850	|||	3
900	|||	3
950	||	2
$\text{Total}$		$\text{15}$

Step 2 : Finding the no. of workers getting less than ₹ 850 per week

Workers getting less than ₹ 850 per week
$=$No. of workers getting ₹750 + No. of workers getting ₹ 800
$=3+4$
$=7$

Hence, 7 workers are getting less than ₹ 850 per week.