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MHT CET20243 May 2024Morning ShiftMathematicsProbabilityActual

A random variable x has the following probability distribution. Then value of k is and P (3 x 6) has the value

Options

  1. A1 20 , 3 7
  2. B5 21 , 3 7
  3. C1 21 , 3 7
  4. D1 20 , 4 7

Correct answer

C. 1 21 , 3 7

Step-by-step solution

aligned & Since _ x=0 ^8 P ( X =x)=1 & k +2 k +3 k +4 k +4 k +3 k +2 k + k + k =1 & k = 1 21 & P (3 x 6)= P ( X =4)+ P ( X =5)+ P ( X =6) &= 4 21 + 3 21 + 2 21 &= 9 21 = 3 7 aligned

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