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An unbiased coin is flipped. What is the probability of getting a tails?

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$1$

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$\\displaystyle\\frac{2}{3}$

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$\\displaystyle\\frac{1}{2}$

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$\\displaystyle\\frac{1}{3}$

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Choose the probability of getting a tails, from four options.

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When we flip an unbiased coin there are $2$ possible outcomes: heads or tails. Both outcomes are equally likely.

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\\\begin{align} P(\\text{tails}) &= \\displaystyle\\frac{\\text{number of favourable outcomes}}{\\text{total number of outcomes}}\\\\ &= \\displaystyle\\frac{1}{2}. \\end{align} \

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