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Find the probabilities of the events given in Question 2.

6. Find the probabilities of the events given in Question 2.

2. When a die is thrown, list the outcomes of an event of getting

(i) (a) a prime number

    (b) not a prime number.

(ii) (a) a number greater than 5 

    (b) a number not greater than 5.

Answers (1)
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Total outcomes = 6

6.(i) (a) prime numbers = 2,3,5 = 3 numbers

          probability of prime number

               =\frac{3}{6}=\frac{1}{2}

        (b) non prime numbers = 1,4,6 = 3 numbers

         probability of non prime number

               =\frac{3}{6}=\frac{1}{2}

  (ii) (a) number greater than 5 = 6  = 1 number only

    probability of getting number greater than 5

                  =\frac{1}{6}

   (b) number not greater than 5 = 1,2,3,4,5 = 5 numbers.

         probability of getting number not greater than 5

                 =\frac{5}{6}

 

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