Quantitative Aptitude Ques 2290

Question: A coin is tossed thrice. The probability that exactly two heads show up is

Options:

A) $ \frac{1}{8} $

B) $ \frac{2}{8} $

C) $ \frac{3}{8} $

D) $ \frac{4}{8} $

Show Answer

Answer:

Correct Answer: C

Solution:

  • Possible outcomes are (HHH, HHT, HTH, THH, HTT, TTH, THT, TTT)

$ \therefore $ Total number of outcomes n (S) = 8 Favourable outcomes are {HHT, HTH, THH} Total favourable outcomes = 3

$ \therefore $ Probability of getting two heads $ =\frac{3}{8} $

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