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Probability of a Coin Toss

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A coin was flipped twenty times and landed heads fifteen times. Based upon this information, answer the following the question:

If the coin is balanced (fair) what is the probability of a head on the toss?
If the coin is not balanced (not fair), what is the probability of a head on the next toss?
If a fair coin is flipped three times what is the probability of getting the following outcomes?
- Zero Heads
- One or more heads
= One head followed by two tails.

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Solution Summary

Probabilities of different outcomes on toss of a coin are solved here.

Solution Preview

For a fair coin, probability of a head on a toss, p = 1/2 == 0.5

If the coin is not a fair coin, the probability of head in a toss, p = 15/20 == ...

Solution provided by:
Amrit Lal Ahuja, PhD (IP)
Education
  • BEng, Allahabad University, India
  • MSc , Pune University, India
  • PhD (IP), Pune University, India
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