A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
In a small company of 10 people the salaries are as follows:
5 people earn $25,000, 3 earn $27,000, 1 earns $34,000, and the owner earns $60,000
What is the mean and standard deviation (to the nearest dollar) of their salaries?
Mean salary:_______________ $a0
Standard Deviation: ______________$a1
anonymous
 one year ago
In a small company of 10 people the salaries are as follows: 5 people earn $25,000, 3 earn $27,000, 1 earns $34,000, and the owner earns $60,000 What is the mean and standard deviation (to the nearest dollar) of their salaries? Mean salary:_______________ $a0 Standard Deviation: ______________$a1

This Question is Closed

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0Well for the mean you need to add count divide. Add 25,000 (5 times), 27,000 (3 times), 34,000, and 60,000. Count the number of people (10), and then divide the sum by that number.

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0Well, what did you get?

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0Lol ok focus on the adding first. You should be adding 10 numbers. 25000+25000+25000+25000+25000+27000+27000+27000+34000+60000

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0Yep :) Then you need to divide by the number of people

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the mean salary is 300000 and the standard deviation is 30000

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0Not quite. The 30,000 that you got is the mean.

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0https://www.mathsisfun.com/data/standarddeviationformulas.html Now you have to subtract the mean from each number and square the result.

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0The first number (going back to the original problem) is 25,000. Subtract 30,000, and then take that difference and square it (multiply it by itself).
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.