My Math Forum Question in statistics

 March 19th, 2018, 01:55 AM #1 Member   Joined: Mar 2017 From: Israel Posts: 70 Thanks: 2 Question in statistics Hello 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.
 March 19th, 2018, 02:08 AM #2 Member   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.

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