If three one by one squres are selected at random from the chessboard, then the probability that... VIDEO
If three one by one squres are selected at random from the chessboard, then the probability that they form the letter \( L \) is
(a) \( \frac{196}{{ }^{64} C_{3}} \)
(b) \( \frac{49}{{ }^{64} C_{3}} \)
(c) \( \frac{36}{{ }^{64} C_{3}} \)
(d) \( \frac{98}{{ }^{64} C_{3}} \)
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