Question

26. Calculate the average age of workers in a
factory whose ages are as follows:
Age (in years) 18-24 24-30 30-36 36-42 42-48 48-54
Number of workers 12 16 24 16 8 4​

Answer 1

Answer:

12+16+24+16+8+4=80÷6=13.33

Answer 2

The average age of workers in a  factory is 33.3

Step-by-step explanation:

using the direct mean method we can calculate the average age of workers in a  factory

mean of the grouped data

the data is shown in the given fig below:

class mark = $\frac{upper limit + lower limit }{2}$

then we can find average or mean by using

mean = $\frac{\sum f_ix_i}{\sum f_i}$

from the table it is observed that

$\sum f_ix_i = 2664 \\\sum f_i = 80$

then

mean = $\frac{\sum f_ix_i}{\sum f_i}$

mean = $\frac{2664}{216}$

mean = 33.3

hence , The average of the data is 33.3

#Learn more:

Draw a histogram and a frequency polygon for the following data

Age (in 0-4 4-8 8 - 12 12 -16 16-20 20 - 24 | 24 - 28

years) No. of persons​

https://brainly.in/question/13574078