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JohnnyCowCow Group Title

When a coin is flipped, there are two possible outcomes: heads or tails. If a coin is flipped three times, what is the probability that there will be tails all three times?

  • one year ago
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  1. JohnnyCowCow Group Title
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    I can post the possible answers if necessary

    • one year ago
  2. wio Group Title
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    Don't post possible answers.

    • one year ago
  3. JohnnyCowCow Group Title
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    OK

    • one year ago
  4. kropot72 Group Title
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    The 3 flips are independent trials each with a probability of 1/2 for tails. Probability of 3 tails in a row is \[\frac{1}{2}\times \frac{1}{2}\times \frac{1}{2}=you\ can\ calculate\]

    • one year ago
  5. mathstudent55 Group Title
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    Figure it out yourself the same we did the previous question. Write a table with all possible outcomes. Then see what fraction your desired outcome is of the total number of outcomes.

    • one year ago
  6. JohnnyCowCow Group Title
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    0.125

    • one year ago
  7. JohnnyCowCow Group Title
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    Thanks!

    • one year ago
  8. kropot72 Group Title
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    You're welcome :)

    • one year ago
  9. mathstudent55 Group Title
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    |dw:1364251372872:dw| There are 8 possible outcomes, and only 1 is three tails, so the probabilty of three tails is 1/8

    • one year ago
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