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#26 2011-02-26 23:21:02
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: help me again..please about cumulative distribution function
Bob laid it out pretty well for you, may I see what you are doing with that equation that you are getting that answer?
I have not received any answer yet. Please respond. Seeing what you did is the best way to be helped.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#27 2011-02-26 23:36:32
- suhana
- Member
- Registered: 2011-02-25
- Posts: 31
Re: help me again..please about cumulative distribution function
no i try do it my own, and understand about the way of work
never made you can not explain for me
no problem I can not force..
thank you
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#28 2011-02-26 23:45:07
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: help me again..please about cumulative distribution function
Please show how you got the answer -.1. You must have done some work. Or you can do it again. Please give it a try.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#29 2011-02-26 23:57:39
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,649
Re: help me again..please about cumulative distribution function
hi suhana
A = (c + c - 0.4)x2/2 + 0.3 x 1
The area of the trapezium is add the parallels (c) and (c-0.4), divide by 2, and multiply by the distance between them (=2)
The area of the rectangle is length x width = 0.3 x 1
This area must be 1 because it's the area under a pdf.
so
Bob
Last edited by Bob (2011-02-27 11:13:28)
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob 
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#30 2011-02-27 08:29:38
- suhana
- Member
- Registered: 2011-02-25
- Posts: 31
Re: help me again..please about cumulative distribution function
bob bundy
emm..thanks...:(
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