A fair eight-sided die

A fair eight-sided die

Secondary 2
3 marks
TGM Original Questions

A fair eight-sided die numbered 1 to 8 is rolled.

  1. Find the probability of
    1. scoring 7,[1]
    2. scoring a prime number.[1]
  2. The die is rolled 14 more times. What is the probability that the fifteenth roll scores 7?[1]

Solution:

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Answer:(a)(i) \(\frac{1}{8}\) (ii) \(\frac{1}{2}\) (b) \(\frac{1}{8}\).

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