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Consider the 6 xx 6 square in the figure...

Consider the `6 xx 6` square in the figure. Let `A_1,A_2, . . .,A_(49)` be the points of intersections (dots in the picture) in some order. We say that `A_i and A_j` are friends if they are adjacent along a row or along a column. Assume that each point `A_i` has an equal chance of being chosen

Two distinct points are chosen randomly out of the points `A_1, A_2, . . . A_(49)` . Let `p` be the probability that they are friends. Then the value of `7 p` is

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