Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
You are not logged in.
Post a reply
Topic review (newest first)
- bobbym
- 2012-11-25 14:38:04
Hi;
It is based on a tree and trick for summing series like that. What part do you need help on?
- jacks
- 2012-11-25 14:19:41
Thanks bobbym
would you like to explain it to me
- bobbym
- 2012-11-22 21:02:01
Hi jacks;
I am getting
So the probability is 5 / 11.
This agrees with computer simulations.
- jacks
- 2012-11-22 13:35:51
A six faced fair dice is thrown until 1 comes, then the probability that 1 comes in even no. of trials is