Find the probability of getting the same number when a die is thrown twice.
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Solution
A die is thrown twice n(s)=36 The probability of getting same number is (1,1)(2,2)(3,3) (4,4)(5,5)(6,6) i.e n(A)=6 Ans. P(A)=n(A)/n(s) = 6/36 =1/6. So, The Answer is 1/6