a faor coin is tossed 100 tims. the probability of getting tail an odd no. of times is....

ans. 1/2

Dear Nitish,

Given that the coin is fair, we know that all strings of coin flips are equally likely. Exactly half of them have an even number of tails, and half of them have an odd number of tails. It follows that the probability that tails occurs is one half.

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