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Math Help - 29-sided die

  1. #1
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    29-sided die

    Suppose you roll a special 29-sided die. What is the probability that the number rolled is a "1" OR a "2"?

    what I did was
    ( 1/29 + 1/29)- 1/841
    however , that didn't work , so can someone help me with this exercise ?
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  2. #2
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    Quote Originally Posted by skorpiox View Post
    Suppose you roll a special 29-sided die. What is the probability that the number rolled is a "1" OR a "2"?

    what I did was
    ( 1/29 + 1/29)- 1/841
    however , that didn't work , so can someone help me with this exercise ?
    Much more is needed to be known about the die.

    Assuming things like all sides are equally likely, the sides are numbered 1 through to 29 etc. etc., then the probability of rolling a 1 or a 2 in a single roll of the die is obviously 2/29.

    (From your blind application of a well known formula it appears that you think that in a single roll it's possible for both a 1 and a 2 to appear ....)
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  3. #3
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    thanks Mr. fantastic . I guess the "OR" misled me
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