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MHT CET202123 Sep 2021Morning ShiftMathematicsProbabilityActual

The probability distribution of a discrete random variable X is Find the value of P (2 < X < 6)

Options

  1. A4 21
  2. B1 21
  3. C10 21
  4. D4 7

Correct answer

D. 4 7

Step-by-step solution

We have K +2 ~K +3 ~K +4 ~K +5 ~K +6 ~K =1 K = 1 21 aligned & P (2 < x < 6)= P ( x =3)+ P ( x =4)+ P ( x =5) & = 3 21 + 4 21 + 5 21 = 12 21 = 4 7 aligned

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