Question

Initially there were 9 workers, all being paid a uniform wage. Later a 10th worker is added to the list whose wage rate is USD 20 less than for others. The standard deviations of wages for the group of 10 workers are?

Answer 1

Answer:

don't know thanks for the points

Answer 2

Step-by-step explanation:

Formula

Average = sum of observation/total number of observations

Calculation

Let the uniform wages of 9 workers be Rs. x per worker

Total wages of 9 workers = 9x

After adding 10th worker whose wage is 20 less than the other then total wages of all 10 workers

⇒ 10x - 20

⇒ Average wages = (10x - 20)/10 = x - 2