Two squares of `1xx1` are chosen at random on a chestboard. What is the probability that they have a side in common ?

Two squares are choosen at random on a chess board. Show that the probability that they have a side in common is (1)/(18).

Two squares are chosen at random on a chessboard, the probability that they have a side in common is:

Two squares are chosen at random on a chessboard (see figure). The probability that they have a side in common is :

Two unit squares are chosen at random on a chess board. Find the probability that they have a side in common.

Two squares are chosen at random on a chessboard (see figure). The probability that they have a side in common is :

(i)If four squares are chosen at random on a chess board, find the probability that they lie on diagonal line. (ii) If two squares are chosen at random on a chess board, what is the Probability that they have exactly on corner in common? (iii) If nine squares are chosen at random on a chess board, what is the probability that they form a square of size 3x3?

(i)If four squares are chosen at random on a chess board, find the proability that they lie on diagonal line. (ii) If two squares are chosen at random on a chess board, what is the Probability that they have exactly on corner in common? (ii) If nine squares are chosen at random on a chess board, what is the probability that they form a square of size 3x3?

(i)If fuor squares are chosen at random on a chess board, find the proability that they lie on diagonal line. (ii) If two squares are chosen at random on a chess board, what is the Probability that they have exactly on corner in common? (ii) If nine squares are chosen at random on a chess board, what is the probability that they form a square of size 3x3?