GATE | GATE CS 2020 | Question 55

For n>2, let a∈{0, 1}n be a non-zero vector. Suppose that x is chosen uniformly at random from {0,1}n. Then, the probability that Σ(from i=1 to i=n)(ai.xi) is an odd number is _________ .

Note – This question was Numerical Type.
(A) 0.25
(B) 0.50
(C) 1.0
(D) 1.50


Answer: (B)

Explanation:

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