Math Is Fun Forum

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

You are not logged in.

#1 2011-12-31 20:24:04

juantheron
Member
Registered: 2011-10-19
Posts: 312

probability

12 persons are asked a question in a random order of which exactly 2 persons know the answer .the probability that the first four do not know the answer is

Offline

#2 2012-01-01 00:57:39

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: probability

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3 2012-01-01 02:17:52

juantheron
Member
Registered: 2011-10-19
Posts: 312

Re: probability

thanks bobbym

Offline

#4 2012-01-01 08:04:36

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: probability

Hi juantheron;

Happy New Year!


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

Board footer

Powered by FluxBB