If I toss a fair coin 20 times and all 20 tosses result in tails (or...

Question

Question

If I toss a fair coin 20 times and all 20 tosses result in tails (or “T”), the probability of heads (or H) appearing on the

Answer 1

Answer #1

The outcome of the 21st toss is independent of the previous tosses.

Since the two outcomes of a toss- Head and Tail are equally likely, so,

Required probability = P(heads appearing on the 21st toss) = 0.5

Hence 3rd option.

Answer 2

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