Solved

If I have just mean, median and standard deviation, can I derive the distribution curve in Excel?

Posted on 2014-09-15
4
142 Views
Last Modified: 2014-09-19
If I have just mean, median and standard deviation, can I derive the distribution curve in Excel?
0
Comment
Question by:fitaliano
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 27

Accepted Solution

by:
Glenn Ray earned 500 total points
ID: 40324338
No.  

A distribution function is dependent on the order of the data.  You can have two sets of numbers with identical elements such that the mean, median, and standard deviation are exactly the same.  However, if one was ordered in an ascending manner and another in descending (or randomly ordered) the distribution curve - whether linear, logarithmic, exponential, polynomial, or whatever - would be different.
example data and plot
-Glenn
0
 
LVL 24

Expert Comment

by:Steve
ID: 40325334
Yes it is possible.
A normal distribution is based upon the mean (AVERAGE) and the standard deviation (STDDEV.S).

Provided you are referring to a normal distribution (using NORMDIST) you can plot a normal distribution quite simply.

If you see the attached you can see this being plotted.
U--NORMDIST.xlsx
0
 
LVL 27

Expert Comment

by:Glenn Ray
ID: 40333406
As much as I hate to ask, are you sure my answer was the correct answer?  After I saw Steve's post, I realized that a normal distribution is a possible curve that can be calculated (even if the only arguments are the average/mean and standard deviation).

Regards,
-Glenn
0
 

Author Comment

by:fitaliano
ID: 40333421
I need to actually plot curves for what they are: meaning left or right skewed if the coefficient of skewedness is big enough (> abs(0.5) or > abs(1)). Coefficient of skewedness takes into account mean, median and standard deviation.
0

Featured Post

Enroll in June's Course of the Month

June's Course of the Month is now available! Every 10 seconds, a consumer gets hit with ransomware. Refresh your knowledge of ransomware best practices by enrolling in this month's complimentary course for Premium Members, Team Accounts, and Qualified Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Excel can be a tricky bit of software to get your head around. Whilst you’ll be able to eventually get to grips with the basic understanding of how to get by, there are a few Excel tips that not everybody will even know about let alone know how to d…
You need to know the location of the Office templates folder, so that when you create new templates, they are saved to that location, and thus are available for selection when creating new documents.  The steps to find the Templates folder path are …
The viewer will learn how to create a normally distributed random variable in Excel, use a normal distribution to simulate the return on an investment over a period of years, Create a Monte Carlo simulation using a normal random variable, and calcul…
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

690 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question