If you throw a die for two times, what is the probability that you will get a one on the first throw

Discussion in 'Calculator Requests' started by math_celebrity, Jan 5, 2017.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    If you throw a die for two times, what is the probability that you will get a one on the first throw or a one on the second throw (or both)?

    • P(1) on first roll and P(anything on second roll) = 1/6 * 1 = 1/6
    • P(anything on first roll) and P(1) on second roll = 1 * 1/6 = 1/6
    • Add those together: 1/6 + 1/6 = 2/6 = 1/3
     

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