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GATE | GATE-CS-2005 | Question 52

A random bit string of length n is constructed by tossing a fair coin n times and setting a bit to 0 or 1 depending on outcomes head and tail, respectively. The probability that two such randomly generated strings are not identical is

(A)

1/2n

(B)

1 - (1/n)

(C)

(1/n!)

(D)

1 - (1/2n)

Answer

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