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Math

Question

A die is thrown twice. What is the probability that (i) 5 will not come up either time? (ii) 5 will come up at least once?

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2 Answer

  • there are 36 outcomes in which 25 of them 5 will not come up either times so the probability of part 1 is 25/36
    in this 1 outcome in which 5 will occur on both dice and 10 uotcomes in which 5 will occur on one of the dice so the probability is
    (1+10)/36=11/36

  • Answer:

    Total event =6×6 =36

    Events of getting 5 are = (5,1),( 5,2),( 5,3),( 5,4),( 5,5),( 5,6),(1,5),(2,5),(3,5), (4,5),( 6,5)

    probability of getting getting 5 =11/36

    Probability of not getting 5 =1-(11/36) =25/36

    probability of getting. 5 exactly one time is =10/36

    Step-by-step explanation: