Tossing two coins — $P(\text{exactly one head})$ is:
A$\dfrac{1}{4}$
B$\dfrac{1}{2}$
C$\dfrac{2}{4}$ (same as 1/2)
D$\dfrac{3}{4}$
Answer & Solution
Correct answer: B. $\dfrac{1}{2}$
$\{HT, TH\}$ out of $\{HH, HT, TH, TT\}$ = $\dfrac{2}{4} = \dfrac{1}{2}$.
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