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mikewahlberg Group Title

Say you have 20 cases that have a different prize ranging from a car to a bucket. What is the probability that within the first 5 cases you don't open the car?

  • one year ago
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  1. DanL33 Group Title
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    odds of getting it with the first one are 1 in 20 on the second one however the odds are 1 in 19 the third is 1 in 18 fourth 1 in 17 fifth 1 in 16 can you work it out from here?

    • one year ago
  2. mikewahlberg Group Title
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    so I would just multiply the odds of each pick?

    • one year ago
  3. DanL33 Group Title
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    remember that you're trying to work out the odds of not getting the car. the odds of not getting the car the first time is 1 in 19

    • one year ago
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