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Coin Flip variation

Posted By: Bob Koca
Date: Saturday, 2 May 2015, at 6:20 p.m.

In Response To: OFF TOPIC -- A question of logic (Timothy Chow)

Here is a similar example that avoids a lot of the ambiguity of the language regarding accuracy.

Suppose that you know that two coins are both equally likely to land on either of its sides when flipped. One coin has 2 heads and the other has a head side and a tail side. One of the coins is chosen at random and flipped. If it is observed to land as a H, then what is the probability that it is the two headed coin? What if instead it was flipped N times and each time it landed as a Head?

Messages In This Thread

• OFF TOPIC -- A question of logic
  joe freedman -- Saturday, 2 May 2015, at 4:12 a.m.
  • OFF TOPIC -- A question of logic
    Jake Jacobs -- Saturday, 2 May 2015, at 5:11 a.m.
    • OFF TOPIC -- A question of logic
      Taper_Mike -- Saturday, 2 May 2015, at 7:31 a.m.
      • +1 *NM*
        Jim Stutz -- Sunday, 3 May 2015, at 3:35 a.m.
    • OFF TOPIC -- A question of logic
      Fatboy -- Sunday, 3 May 2015, at 7:06 p.m.
  • OFF TOPIC -- A question of logic
    Art Grater -- Saturday, 2 May 2015, at 6:40 a.m.
  • OFF TOPIC -- A question of logic
    rambiz -- Saturday, 2 May 2015, at 9:50 a.m.
    • OFF TOPIC -- A question of logic
      Mike Clapsadle -- Saturday, 2 May 2015, at 11:29 a.m.
      • OFF TOPIC -- A question of logic
        Timothy Chow -- Saturday, 2 May 2015, at 6:17 p.m.
        • OFF TOPIC -- A question of logic
          Bob Koca -- Saturday, 2 May 2015, at 6:26 p.m.
        • OFF TOPIC -- A question of logic
          Havard Raddum -- Saturday, 2 May 2015, at 6:28 p.m.
          • OFF TOPIC -- A question of logic
            Timothy Chow -- Saturday, 2 May 2015, at 6:37 p.m.
        • OFF TOPIC -- A question of logic
          Mike Clapsadle -- Saturday, 2 May 2015, at 9:04 p.m.
  • OFF TOPIC -- A question of logic
    joe freedman -- Saturday, 2 May 2015, at 4:52 p.m.
    • OFF TOPIC -- A question of logic
      Bob Koca -- Saturday, 2 May 2015, at 4:57 p.m.
      • OFF TOPIC -- A question of logic
        joe freedman -- Saturday, 2 May 2015, at 5:36 p.m.
        • OFF TOPIC -- A question of logic
          Bob Koca -- Saturday, 2 May 2015, at 6:12 p.m.
          • OFF TOPIC -- A question of logic
            joe freedman -- Saturday, 2 May 2015, at 6:21 p.m.
            • OFF TOPIC -- A question of logic
              Bob Koca -- Saturday, 2 May 2015, at 6:44 p.m.
              • OFF TOPIC -- A question of logic
                joe freedman -- Saturday, 2 May 2015, at 6:59 p.m.
                • OFF TOPIC -- A question of logic
                  Bob Koca -- Saturday, 2 May 2015, at 7:17 p.m.
                  • OFF TOPIC -- A question of logic
                    joe freedman -- Saturday, 2 May 2015, at 8:20 p.m.
    • OFF TOPIC -- A question of logic
      Timothy Chow -- Saturday, 2 May 2015, at 6:00 p.m.
      • Coin Flip variation
        Bob Koca -- Saturday, 2 May 2015, at 6:20 p.m.
        • Coin Flip variation
          Timothy Chow -- Saturday, 2 May 2015, at 6:30 p.m.
        • Coin Flip variation
          joe freedman -- Saturday, 2 May 2015, at 7:13 p.m.
          • Coin Flip variation
            Bob Koca -- Saturday, 2 May 2015, at 8:01 p.m.
          • Coin Flip variation
            Art Grater -- Saturday, 2 May 2015, at 8:52 p.m.