SOLUTION: What is the probability that it will take at most 3 throws until a six occurs on a dice

Question 1152095: What is the probability that it will take at most 3 throws until a six occurs on a dice
Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
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I edited your post in THIS WAY :

    When rolling a dice, what is the probability that it will take at most 3 throws until a six occurs on a dice ?

Solution

    P =   P(getting 6 at the first rolling) + 

        + P(getting 6 at the second rolling and not getting it at the first rolling) + 

        + P(getting 6 at the third rolling and not getting it NEITHER at the 1-st NOR at the 2-nd rolling) = 


        =  +  +  = 

        =  +  +  =  +  +  =  =  = 0.421296 = 42.1296%.    ANSWER

Solved.

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