The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.stat.math

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: log normal?
Replies: 14   Last Post: Jan 1, 2013 6:17 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
David Jones

Posts: 80
Registered: 2/9/12
Re: log normal?
Posted: Dec 27, 2012 6:11 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"RichD" wrote in message

Ocasionally I come across somethign called log
normal, and I wonder, what is the purpose?
The normal distribution is natural, but the log of that,
seems unnatural, and unintuitive.

Can anyone elaborate on its use?



It is not "log of that", it is the "exponential of that" ... that is, a
lognormal rv is the exponential of a normal rv.

If an observation has a lognormal distribution, the logarithm of the
observation has a normal distribution.

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.