what’s the probability of rolling a 5 and then rolling a number less then 2

Discussion in 'Calculator Requests' started by math_celebrity, May 19, 2023.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    what’s the probability of rolling a 5 and then rolling a number less then 2

    Roll a 5:
    There's only one 5 on a six sided die
    P(X = 5) = 1/6

    A number less than 2 is only 1:
    P(X < 2) = P(X = 1)
    P(X = 1) = 1/6

    Since each event is independent, we multiply:
    P(X = 5) * P(X = 1) = 1/6 * 1/6
    P(X = 5) * P(X = 1) = 1/36
     

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