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If a fair coin is tossed 3 times, what is the probability of getting at least tw...


Question

If a fair coin is tossed 3 times, what is the probability of getting at least two heads?

Options

A) \(\frac{2}{3}\)

B) \(\frac{4}{5}\)

C) \(\frac{2}{5}\)

D) \(\frac{1}{2}\)

The correct answer is D.

Explanation:

The outcomes are {HHH, HHT, HTT, HTH, THH, THT, TTH, TTT}
P(at least two heads) = \(\frac{4}{8}\)
= \(\frac{1}{2}\)

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