I need help with mathmatical issue

Nuke Cadet Joined: Jan 08, 2006 Posts: 5

It not really a coding problem but a mathmatical issue.

I am writing a hot or not type script for php-nuke. Check out hotornot.com to see what i am going to ask.

When a user clicks a vote number 1-10 .. It will then take it and compare to the total votes and get an advrage. oviously 1-10.

My questions are...
How do i get the advarage?
Do i need to record all votes to make it work?

Posted: Fri Mar 03, 2006 10:53 am

To get the average all you need to do is add the votes together and divide by the number of votes.

For example:

Person 1 votes = 7
Person 2 votes = 5
Person 3 votes = 6

Add them together: 7+5+6 = 18

Divide that by the total number of votes: 18/3=6 (average)

You wouldn't need to record all the votes just keep adding the new vote to the sum of the previous votes and divide by the total number of votes.

Jakec

Nuke Cadet Joined: Jan 08, 2006 Posts: 5

Thank you that helped out alot. Made me think of how I should do it exactly. Your help was much appreciated. Thanks again.