Difference between revisions of "Exponential distribution/Definition"

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m (Added note about the home parameter to this page)
m (Embarrassing typo)
 
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** {{M|f:x\mapsto \lambda e^{-\lambda x} }}, from this we can obtain:
 
** {{M|f:x\mapsto \lambda e^{-\lambda x} }}, from this we can obtain:
 
* the [[cumulative distribution function]], {{M|F:\mathbb{R}_{\ge 0}\rightarrow[0,1]\subseteq\mathbb{R} }}, which is:
 
* the [[cumulative distribution function]], {{M|F:\mathbb{R}_{\ge 0}\rightarrow[0,1]\subseteq\mathbb{R} }}, which is:
** {{M|F:x\mapsto 1-e^{\lambda x} }}
+
** {{M|F:x\mapsto 1-e^{-\lambda x} }}
 
*** The proof of this is '''claim 1''' {{#if:{{{home|}}}|below|on the [[exponential distribution]] page}}
 
*** The proof of this is '''claim 1''' {{#if:{{{home|}}}|below|on the [[exponential distribution]] page}}
  

Latest revision as of 01:27, 16 March 2018

Grade: B
This page requires references, it is on a to-do list for being expanded with them.
Please note that this does not mean the content is unreliable, it just means that the author of the page doesn't have a book to hand, or remember the book to find it, which would have been a suitable reference.
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use Rice's P book. Page 48

Using this page

Set home to something when using this page to change the "the proof of this is claim 1 message"

Definition

Let λR0 be given, and let XExp(λ) be an exponentially distributed random variable. Then:

  • the probability density function, f:R0R0 is given as follows:
    • f:xλeλx, from this we can obtain:
  • the cumulative distribution function, F:R0[0,1]R, which is:

The exponential distribution has the memoryless property[Note 1]

Notes

  1. Jump up Furthermore, the memoryless property characterises the exponential distribution, that is a distribution has the memoryless property if and only if it is a member of the exponential distribution family, i.e. an exponential distribution for some λR>0

References