Combinatorics Question

**wondering2** · 11-14-2010, 08:56 PM

So I'm working on a rather elaborate combinatorics problem, I'll explain a simplified version although my version would many more rows

Suppose you have three coins, with probability heads .3 .5 and .6. What is the probability that at least two are heads. This is pretty simple to do, just multiply each combination of two and then each combination of three. I need to do this for 30+ row entries. Is there a way that this would be made simple?

**martindwilson** · 11-14-2010, 09:02 PM

3 coins 50/50 each?

**Marcol** · 11-14-2010, 09:03 PM

This is pretty simple to do, just multiply each combination of two and then each combination of three

Just use your simple formula for the above, and drag down 30+ rows.

Burrph! to much beer again.

**royUK** · 11-15-2010, 02:01 AM

Your post does not comply with Rule 1 of our Forum RULES. Your post title should accurately and concisely describe your problem, not your anticipated solution. Use terms appropriate to a Google search. Poor thread titles, like Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will be addressed according to the OP's experience in the forum: If you have less than 10 posts, expect (and respond to) a request to change your thread title. If you have 10 or more posts, expect your post to be locked, so you can start a new thread with an appropriate title.
To change a Title on your post, click EDIT then Go Advanced and change your title, if 2 days have passed ask a moderator to do it for you.