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jesusfreak Group Title

Krissy has 3 arrows. The probability of her hitting the target is 2/5. What is the probability that she will get at least one arrow on the target?

  • 2 years ago
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  1. mathmate Group Title
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    At least one means she does not miss all, which is easier to calculate. Probability of missing all three is P(0)=(3/5)^3 so P(1+)=1-P(0)

    • 2 years ago
  2. jesusfreak Group Title
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    What would the answer be in percent?

    • 2 years ago
  3. mathmate Group Title
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    P(0)=(3/5)^3= 0.216 so P(1+)=1-P(0)=0.784

    • 2 years ago
  4. jesusfreak Group Title
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    Thank you!

    • 2 years ago
  5. mathmate Group Title
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    You're welcome!

    • 2 years ago
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spraguer (Moderator)
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