1. ## Probability

5 teams compete against each other only once the probability that a team wins all four of its games and the other team loses all 4 of its games

2. ## Re: Probability

Not enough info given?

3. ## Re: Probability

Think in terms of 'league table' listing the number of wins, draws, and losses for each team. Be aware that each one of 5 teams has played 4 games since each team has four opposing teams.

One such possible 'league table' could look like:

W D L
4 0 0 --> 4 wins
1 2 1
1 2 1
1 2 1
0 0 4 --> 4 losses

Take it from there.

4. ## Re: Probability

Can you tell me the answer of this question

5. ## Re: Probability

Originally Posted by prasum
Can you tell me the answer of this question
All possible outcomes for one team are given in following table :

$\begin{array}{|c|c|c|} W & D & L \\\hline4&0&0\\3&1&0\\3&0&1\\2&1&1\\2&0&2\\2&2&0\\ 1&0&3\\1&3&0\\1&1&2\\1&2&1\\0&1&3\\0&3&1\\0&2&2\\0 &4&0\\0&0&4\\\end{array}$

Hence , probability for both cases is :

$P=\frac{1}{15}$

6. ## Re: Probability

Some big assumptions there.