Two plants A and B of a factory show the following results about the number of workers and the wages paid to them

In which plant A or B is there greater variability in individual wages?

Variation of the distribution of wages in plant A(=18)

So, Standard deviation of the distribution A()

Similarly, the Variation of the distribution of wages in plant B(=100)

So, Standard deviation of the distribution B()

And, Average monthly wages in both the plants is 2500,

Since The plant with a greater value of SD will have more variability in salary.

Hence, Plant B has more variability in individual wages than plant A