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March 19th, 2018, 10:25 PM   #1
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Need help to edit my post.

Hi everyone, I am a new member. Can someone help me edit my post since I am a newbie so there is no edit button.
Thank you.
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March 19th, 2018, 11:11 PM   #2
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There is an edit button, but it appears for a limited time only.

50% off your edit button! Come one come all, selling out sale, limited time available!
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March 19th, 2018, 11:18 PM   #3
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Feels like a WinRar trial if you ask me...
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March 20th, 2018, 12:18 AM   #4
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Quote:
Originally Posted by Shanonhaliwell View Post
Can someone help me edit my post...
Hello Shannonhaliwell and welcome to MMF!

Provide a link to the post and instructions on what to edit and we'll make the changes for you.
Thanks from Shanonhaliwell

Last edited by greg1313; March 21st, 2018 at 06:09 PM.
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March 20th, 2018, 01:22 PM   #5
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Quote:
Originally Posted by greg1313 View Post
Hello Shannonhaliwell and welcome to MMF!

Provide a link to the post and instructions on what to edit and I'll make the changes for you.

The P.M.F. of Hypergeometric and Negative Binomial Distribution.

This is my post. I would like to make some changes in my solution. Please help me.
Thank you.
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March 20th, 2018, 02:59 PM   #6
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What changes would you like to make?
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March 20th, 2018, 03:01 PM   #7
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Quote:
Originally Posted by greg1313 View Post
What changes would you like to make?
The joint P.M.F. of X and Y is as following:
$$
P_{X,Y}(x,y) = \begin{cases}0 &\text{if X=0 and Y is finite} \\ P(X=0)=\dfrac{\dbinom{20}{0}\dbinom{80}{30-0}}{\dbinom{100}{30}} &\text{if X=0 and Y is infinite} \\P_X(x)P_{Y/X}(y/x) = \dfrac{\dbinom{20}{x}\dbinom{80}{30-x}}{\dbinom{100}{30}} \dbinom{30-1}{4-1} 0.8^{30-4} 0.2^4 &\text{if }X=1,2,\dots ,20 \\ 0 &\text{ otherwise} \end{cases}
$$

I might need to change in the future so it would be very helpful to have a permission to make my own changes. Thanks.
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March 20th, 2018, 03:21 PM   #8
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Quote:
Originally Posted by Shanonhaliwell View Post
<snip>..I might need to change in the future so it would be very helpful to have a permission to make my own changes. Thanks.
As I understand it, everyone has the ability to edit their own posts for a certain time after the post is made. In general in a forum environment excessive editing is frowned on because you can seriously meddle with the context and content of a thread that way. Editing to get a post correct is fine and thus you get a limited time within which to perform it.

If you feel you truly need to correct a post, you can always just post again, noting that the new post is a correction.

Last edited by skipjack; March 20th, 2018 at 04:28 PM.
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March 20th, 2018, 03:46 PM   #9
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Quote:
Originally Posted by romsek View Post
as I understand it everyone has the ability to edit their own posts for a certain time after the post is made. In general in a forum environment excessive editing is frowned on because you can seriously meddle with the context and content of a thread that way. Editing to get a post correct is fine and thus you get a limited time within which to perform it.
Agree with all that Romsek.
BUT seems to me that while there is no 2nd post
(the original still there by itself)
then edits should be allowed;
cut off the edits when 2nd post is made.
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March 20th, 2018, 04:30 PM   #10
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I've done the edit for you, Shanonhaliwell.
Thanks from greg1313 and Shanonhaliwell
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