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9th Class Mathematics Probability Question Bank Probability

  • question_answer
    Suppose that a pair of dice is rolled. The 25 different possible results are illustrated on the 2-dimensional grid. The possibility of getting a sum of greater than 8 is

    A) \[\frac{1}{12}\]                         

    B)  \[\frac{5}{18}\]

    C)  \[\frac{6}{25}\]                        

    D)  \[\frac{3}{25}\]

    Correct Answer: D

    Solution :

    (d): \[n\left( E \right)=\left\{ \left( 4+5 \right),\left( 5+4 \right),\left( 5+5 \right) \right\}=3\] \[n(S)=25\] \[n\left( P \right)\text{ }=\frac{3}{25}\]


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