Browse Groups

• ## [AI] Chapter 13, Probability Density Functions

(2)
• NextPrevious
• السلام عليكم ورحمة الله وبركاته In chapter 13: Uncertainty, page 469, I couldn t understand how did the author calculate ... nor the
Message 1 of 2 , Feb 24, 2007
View Source
السلام عليكم ورحمة الله وبركاته

In chapter 13: Uncertainty, page 469, I couldn't understand how did the author calculate
P( X = 20.5 ) = U[ 18, 26 ]( 20.5 ) = ( 0.125 ) / C
nor the limit at the end of the page!!

Thanks a lot

السلام عليكم ورحمة الله وبركاته
--
Ahmed Mostafa
0123919750
Fourth Year,
Computer Engineering Department,
Faculty of Engineering,
Cairo University
• Uniform distribution simply means that any point is equally likely along the interval 18-26 deg C. So ANY point (say 20.5) is 12.5% likely to happen. All the
Message 1 of 2 , Mar 5, 2007
View Source
Uniform distribution simply means that any point is equally likely
along the interval 18-26 deg C. So ANY point (say 20.5) is 12.5%
likely to happen.

All the book is trying to say is that the probability of the
temperature being EXACTLY 20.5 is 0 (the probability of a single point
in a continuous distribution function is zero) but that the
probability of the temperature being "around" 20.5 is 12.5%. That
interval could be say 1/10 of a degree.. so 20.4 -> 20.6.
--- In aima-talk@yahoogroups.com, "Ahmed Mostafa" <eng.ahmed2007@...>
wrote:
>
> ÇáÓáÇã Úáíßã æÑÍãÉ Çááå æÈÑßÇÊå
>
> In chapter 13: Uncertainty, page 469, I couldn't understand how did the
> author calculate
>
> > P( X = 20.5 ) = U[ 18, 26 ]( 20.5 ) = ( 0.125 ) / C
> >
> nor the limit at the end of the page!!
>
>
> Thanks a lot
>
> ÇáÓáÇã Úáíßã æÑÍãÉ Çááå æÈÑßÇÊå
> --
> Ahmed Mostafa
> 0123919750
> Fourth Year,
> Computer Engineering Department,
> Faculty of Engineering,
> Cairo University
>
Your message has been successfully submitted and would be delivered to recipients shortly.
• Changes have not been saved
Press OK to abandon changes or Cancel to continue editing
• Your browser is not supported
Kindly note that Groups does not support 7.0 or earlier versions of Internet Explorer. We recommend upgrading to the latest Internet Explorer, Google Chrome, or Firefox. If you are using IE 9 or later, make sure you turn off Compatibility View.