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March 19th, 2018, 01:55 AM   #1
Joined: Mar 2017
From: Israel

Posts: 70
Thanks: 2

Question in statistics


Can you help me please about the next exercise:

The average daily wage of an employee in factory A is 300$ and the standard deviation of wage in the same factory is 50$.
In factory B, which employs three times more than number of workers in Factory A (it means - if there are 100 employees in factory A, so in factory B there are 300), pays their employees a standard salary of 200$ per day.
Therefore, the standard deviation of the wage of all workers in the two factories is:

a. 50$
b. 25$
c. 625$
d. 2500$

My answer:

Therefore, in factory B there are 3*b employees.
And if I understood correctly, the average in factory B is 200$.
I still can't reach a solution, I don't know... maybe I'm in the wrong direction? or I did something wrong?

Thanks a lot!
*Sorry if my english is bad, I will explain again and again if you didn't understand*

Last edited by IlanSherer; March 19th, 2018 at 02:46 AM.
IlanSherer is offline  
March 19th, 2018, 02:08 AM   #2
Joined: Mar 2017
From: Israel

Posts: 70
Thanks: 2

I edited it, sorry for that I didn't write the question, I had a problem with the computer that removed the question.
IlanSherer is offline  

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