Sum of the probabilities of getting a head and a tail when an unbiased coin is tossed is
Sum of the probabilities of getting a head and a tail when an unbiased coin is tossed is
A) 1/2
B) 1/4
C) 1
D) 0
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Correct option is (C) 1
When an unbiased coin is tossed then possible outcomes are S = {H, T}.
\(\therefore\) P(H) = \(\frac12\) & P(T) \(=\frac12\)
\(\therefore\) P(H) + P(T) \(=\frac12+\frac12=1\)
Hence, sum of probabilities of getting a head and a tail when an unbiased coin is tossed is 1.
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