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Math Help - probabilities

  1. #1
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    Wink probabilities

    Hi All,

    I am currently helping a grade school student try and solve this problem. "Selena has just rolled three numbered cubes(dice)What is the probability that all three cubes match". Is there a formula for figuring out probabilities, and what might the answer be to this one. Thanks!
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  2. #2
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    There are 6^3 possible outcomes when you roll 3 dice.

    There is 1 way to get 3 6's, 1 way to get 3 5's, 1 way to get 3 4's, etc...

    6/216=1/36
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  3. #3
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    here is a link of an overview of probability...

    Probability lessons, tutorials and homework help.

    i hope this helps... (^_^)
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  4. #4
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    Quote Originally Posted by garrett View Post
    Hi All,

    I am currently helping a grade school student try and solve this problem. "Selena has just rolled three numbered cubes(dice)What is the probability that all three cubes match". Is there a formula for figuring out probabilities, and what might the answer be to this one. Thanks!
    well, the formula for finding probability is

    possible outcomes/total outcomes



    now a dice has numbers from 1 to 6


    so we have three dices all having numbers from 1 to 6

    no what we need is that all the cubes match, that is the numbers obtained be equal

    that means, we should get the outcomes (1,1,1) or (2,2,2) or (3,3,3) ..... or (6,6,6)

    so that means there are 6 outcomes that occur which are required,

    now for the total outcomes ( that is if we roll the three dices the number of times required to get all the combinations ) that would occur, it is 6*6*6


    so now the probability is 6/(6*6*6)

    taht is 1/36

    so that's the probability.

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