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anonymous

  • one year ago

Isla flipped a coin 30 times. The coin landed heads up 9 times and tails up 21 times. Part A: Based on the results, what is the experimental probability of the coin landing heads up? Show your work. (5 points) Part B: What is the theoretical probability of the coin landing heads up? Show your work. (5 points)

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  1. anonymous
    • one year ago
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    I really need help

  2. perl
    • one year ago
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    Experimental probability is defined as the proportion of the favorable event: # observed favorable / # observed total

  3. anonymous
    • one year ago
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    I get that but how do I answer this question :(

  4. perl
    • one year ago
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    what is the number favorable here

  5. anonymous
    • one year ago
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    30

  6. anonymous
    • one year ago
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    I need help with the experimental question.

  7. perl
    • one year ago
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    30 is the total , not the number favorable

  8. anonymous
    • one year ago
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    Then it is 9?

  9. anonymous
    • one year ago
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    So it is 9/30 = 0.3 21/30 = 0.7.

  10. anonymous
    • one year ago
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    Help somone

  11. anonymous
    • one year ago
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    I'll metal them please help!

  12. anonymous
    • one year ago
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    @undeadknight26

  13. anonymous
    • one year ago
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    What is the experimental probability?

  14. anonymous
    • one year ago
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    @sirm3d

  15. anonymous
    • one year ago
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    @Jaynator495

  16. anonymous
    • one year ago
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    @Nurali

  17. anonymous
    • one year ago
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    @kevinhunterwood69

  18. ybarrap
    • one year ago
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    \(Experimental\) means what you get after you flip the coins and count the number of heads. In this case you (actually Isla) counted 9. You tried 30 times so the experiment predicts that the probability of heads is 9/30. The theoretical solution is what you get by making assumptions. The easiest assumption is that the number of heads and the number of tails should be about the same after many many experiments. Right? So if you expect an equal number of heads and an equal number of tails, how many heads would you expect after 30 flips of the coin? You'll get #heads/30 = 0.50, which is the theoretical probability of heads. Hope this helps.

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