The weight in kilograms of 60 workers in a factory are given in the following frequency table. Find the mean weight of a worker. Weight606162636465No. of workers581416107Class: 10 - Sri Chaitanya Infinity Learn Best Online Courses for NCERT Solutions, CBSE, ICSE, JEE, NEET, Olympiad and Class 6 to 12

Given,

Weight(kg)	60	61	62	63	64	65
No. of workers	5	8	14	16	10	7

we know, mean for frequency table is given by

mean = \frac{w_{1} \times n_{1} + w_{2} \times n_{2} + w_{3} \times n_{3} + w_{4} \times n_{4} + w_{5} \times n_{5} + w_{6} \times n_{6}}{n_{1} + n_{2} + n_{3} + n_{4} + n_{5} + n_{6}}

Putting the values, we get
mean=

\frac{300 + 488 + 868 + 978 + 640 + 455}{60} = 62.15 kg

The weight in kilograms of 60 workers in a factory are given in the following frequency table. Find the mean weight of a worker.

Weight
60
61
62
63
64
65
No. of workers
5
8
14
16
10
7

Class: 10