Question

The following data represents the weekly wages (in Rs) of 15 workers in a factory :

900, 850, 800, 850, 800, 750, 950, 900, 950, 800, 750, 900, 750, 800 and 850.

Prepare a frequency distribution table. Now find,

(i) how many workers are getting less than Rs 850 per week?

(ii) how many workers are getting more than Rs 800 per week?

Answer 1

The required frequency table will be as shown below :

Weekly wages in (Rs)	Tally-marks	Frequency
750	|||	3
800	||||	4
850	|||	3
900	|||	3
950	||	2
Total no. of workers		15

(i) Workers getting less than Rs 850 per week

No. of workers getting Rs 750 = 3 workers

No. of workers getting Rs 800 = 4 works

∴ Workers getting less than Rs 850 = 4 + 3 = 7 workers

(ii) Workers are getting more than Rs 800 per week

No. of workers getting Rs 850 = 3

No. of workers getting Rs 900 = 3

No. of workers getting Rs 950 = 2

∴ Workers getting more than Rs 800 = 3 + 3 + 2 = 8 worker