Independently of each other, two people think of a number between 1 andtwo numbers chosen at random by the two people?

10. What is the probability that five or more numbers will separate the

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- Oct 20th 2008, 03:39 AMmatty888Random numbersIndependently of each other, two people think of a number between 1 andtwo numbers chosen at random by the two people?

10. What is the probability that five or more numbers will separate the - Oct 20th 2008, 08:02 AMPlato
Here is a suggestion. Draw a 10x10 grid.

There will be 100 lattice points, pairs of integers, (1,1) to (10,10).

Count the number pf pairs that works.

For example, the pairs (4,9) & (9,4) both work.

How many others are there?