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What defines probability

  1. Jan 9, 2016 #1
    If you go through my thread here
    https://www.physicsforums.com/threa...the-phenotypic-ratio-of-the-pea-plant.848650/
    There is a particular reason that strikes me when i go through the answers i received - it seems so that for each pea to grow into a tall plant, the possibility of such an event is 3 for 4; and the probability of the pea to grow to a dwarf one is 1 for 4...
    lets consider a similar sort of experiment, Mendel took
    Say I have a die and 5 of it's faces are painted green and the other 1 is painted yellow, and you don't know the number of faces the die has ( say ). Only by rolling the die and noting observations can you guess the number of faces a die has for X number of trails and ;
    will greater the X , more accurate the guess ?
     
  2. jcsd
  3. Jan 9, 2016 #2
    Yes, the accuracy of the guess increases with the number of trials. This is what statistics is largely about, telling you exactly how (in)accurate.
     
  4. Jan 9, 2016 #3

    WWGD

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    Have you read about the Law of Large Numbers?
     
  5. Jan 14, 2016 #4
    nope but i'd be interested......
     
  6. Jan 14, 2016 #5

    Stephen Tashi

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    In a scenario involving probability there are no deterministic guarantees. You can't be sure the guess will be more accurate with a greater number of trials. The correct statement is that more trials implies a greater probability that the estimate ("the guess") will be accurate.
     
  7. Jan 16, 2016 #6
    That makes it more clear
    Thanx
     
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