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Statistics question

Jints
Jints Posts: 3,559
edited November 2011 in General Charlton
image

Comments

  • oohaahmortimer
    oohaahmortimer Posts: 34,621
    brilliant
  • cafcrocky87
    cafcrocky87 Posts: 423
    I don't even...
  • Henry Irving
    Henry Irving Posts: 85,778
    Kanu?
  • Rizzo
    Rizzo Posts: 6,508
    My head just exploded.

    True story.
  • WSS
    WSS Posts: 25,271
    Ha, very clever.
  • rufusisadogsname
    rufusisadogsname Posts: 862
    0
  • Stig
    Stig Posts: 29,515
    edited November 2011
    And every choice offered is wrong.  If you were really answering at random it would be a lot lower that, closer to Rufus' 0.  Those answers are forced choice, not random.
  • Bedsaddick
    Bedsaddick Posts: 25,194
    Am i missing something?

  • better red than dead
    better red than dead Posts: 496
    Am i missing something?

    Yes
  • Jints
    Jints Posts: 3,559
    And every choice offered is wrong.  If you were really answering at random it would be a lot lower that, closer to Rufus' 0.  Those answers are forced choice, not random.
    It's a good point. It would be better if c) was 0%

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  • cafcfan
    cafcfan Posts: 11,282

    There is no question so there can't be an answer, random or otherwise.

  • Stig
    Stig Posts: 29,515
    And every choice offered is wrong.  If you were really answering at random it would be a lot lower that, closer to Rufus' 0.  Those answers are forced choice, not random.
    It's a good point. It would be better if c) was 0%
    The trouble with that is that 0 isn't quite right either, because of all the billions and billions of answers that you could give, one just might turn out to be right. I'd say that the correct answer is that the chances are infinately small: 1/∞

    I still think it's a great question though. Sorry to be so picky ;-)
  • The Prince-e-Paul
    The Prince-e-Paul Posts: 6,789

    is it 25%. or 1 in 4. Four possible answers.

    Another more important question. What school is this? and where in the world do they still use blackboards, sorry chalkboards. at my daughter's school every class room has a huge touch screen computer monitor up on the wall.

  • Valiantphil
    Valiantphil Posts: 6,456
    The answer is 100%. You will be right every time.

    There is no stipulation that the percentages shown in ABCD relate to the question - in fact, they obviously don't because 33% is not an option.

    So the question in it's long form must mean ............
    "If you choose and answer to this question, what are the chances that you will choose and answer to this question?"

    Hence the answer is 100%.

    I hope that makes sense :)
  • CatAddick
    CatAddick Posts: 2,405
    edited November 2011
    For the pedants among you it says "an answer" which implies, as above 1/infinity
    If you interpret it as "an answer from the four choices", logically it is 1/4 -> 25%
    But TWO of the choices are 25% so it should be 2/4 -> 50%
    ....but only if you say 50% and not B) as that is the 'wrong' answer...

    Makes you think though!!
  • Friend Or Defoe
    Friend Or Defoe Posts: 18,222
    edited November 2011
    0%.

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