Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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## Topic review (newest first)

bobbym
2012-12-20 06:12:38

Hi;

Thanks, I have repaired the typo.

anonimnystefy
2012-12-20 06:10:24

Hi bobbym

You have some unmatched parenthesis in there...

That's LaTeX, not Lisp.

bobbym
2012-12-20 06:00:17

Hi jacks;

How many ways can you select 3 balls from a pile or 4 red balls, another pile of 3 yellow balls and a pile of 2 blue balls.

jacks
2012-12-20 04:23:58

Thanks bobbym.

bobbym would you like to give me an idea about generating function

bobbym
2012-12-18 23:17:10

Hi Agnishom;

Generating functions are really a shortcut way to do all types of counting problems. They turn combinatorics and probability problems into computational ones.

Agnishom
2012-12-18 23:13:37

What is the theory of gf's?

bobbym
2012-12-18 11:06:09

Hi jacks;

Standard yahtzee problem ( modified for 6 die ). That is the method I used.

jacks
2012-12-18 04:46:15

Yes bobbym you are Right.

would you like to explain it to me

Thanks

bobbym
2012-12-18 03:27:01

Hi;

I am getting 25 / 162 as the answer.

jacks
2012-12-18 02:19:02

like this 6,6,6, and 1,3, 5

bobbym
2012-12-18 02:10:20

Different face from the 3 or different from each other too?

Is this okay 4,4,4 and 5,5, 2 or must it be like this 6,6,6, and 1,3, 5?

jacks
2012-12-18 02:03:33

6 Dice are thrown simultaneously. Then the probability that exactly 3 of them show the same face and remaining 3 shows different face, is