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BITSAT2012MathematicsProbabilityActual

Two dice are thrown together 4 times. The probability that both dice will show same numbers twice is -

Options

  1. A1 3
  2. B25 36
  3. C25 216
  4. DNone of these

Correct answer

C. 25 216

Step-by-step solution

(c) The probability of showing same number by both dice p= 6 36 = 1 6 In binomial distribution here n=4, r=2, p= array l 1 6 , q = 5 6 req. probability = n r q^ n-r p^ r = 4 2 ( 5 6 )² ( 1 6 )² =6 ( 25 36 ) ( 1 36 )= 25 216 array

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