My Math Forum  

Go Back   My Math Forum > College Math Forum > Advanced Statistics

Advanced Statistics Advanced Probability and Statistics Math Forum


Reply
 
LinkBack Thread Tools Display Modes
March 19th, 2018, 02:55 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 03:46 AM.
IlanSherer is offline  
 
March 19th, 2018, 03:08 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.
IlanSherer is offline  
Reply

  My Math Forum > College Math Forum > Advanced Statistics

Tags
question, statistics



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Statistics question drpepper1990 Advanced Statistics 1 February 28th, 2016 08:04 AM
A question about statistics Channeltsui Advanced Statistics 0 January 24th, 2013 03:01 AM
A statistics question... Artus Advanced Statistics 1 November 2nd, 2012 11:03 AM
question about statistics jmersh Probability and Statistics 2 October 15th, 2012 07:15 PM
Statistics question jhon13 Advanced Statistics 2 May 26th, 2012 11:19 PM





Copyright © 2018 My Math Forum. All rights reserved.