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Wednesday, October 30, 2013

Random Number Generator for Normal Distribution

This is a site Ms. Erwin and I found for finding random numbers using a normal distribution, in case your calculator does not do randNorm.  It will take a little working with, but it is nice.

Enter in your mean, your standard deviation, and choose 100 trials.  Make sure to click Y for displaying results in a table.

When I get home I will look at random.org, which I think has to have some kind of normal distribution generator.

http://www.wessa.net/rwasp_rngnorm.wasp

Amended:

random.org does have a normal distribution random number generator, which worked nice.  The problem I had with it was that it produced the answers in scientific notation, which is easy to get around.

I finally read the internet and figured out how to use Excel to serve this purpose, and it was beautiful.  I will provide a link to an example I did in 1st block in another post.

The command is NORMINV(RAND( ), mean, standard deviation).  It works beautifully and saves lots of time.

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