Site navigation

If you flip a fair coin twice, what is the probability of getting exactly one head?

Question and options

If you flip a fair coin twice, what is the probability of getting exactly one head?
  1. 14\frac{1}{4}
  2. 12\frac{1}{2}
  3. 34\frac{3}{4}
  4. 13\frac{1}{3}

Answer and explanation

Correct answer: B - \(\frac{1}{2}\)
Outcomes HH, HT, TH, TT. Exactly one head occurs in HT and TH, so P=24=12P = \frac{2}{4} = \frac{1}{2}.

Practice for these exams

  • CUSAT CAT Five-Year LL.B.

Related question papers

Related exam syllabi

More solved explanations in Arithmetic