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MHT CET202521 Apr 2025Evening ShiftMathematicsProbabilityActual

The c.d.f. of a discrete random variable X is ( array |c|c|c|c|c|c|c|c|c| X & -3 & -1 & 0 & 1 & 3 & 5 & 7 & 9 ~F ( X = x ) & 0.1 & 0.3 & 0.5 & 0.65 & 0.75 & 0.85 & 0.90 & 1 array ) Then P[X=-3] P[X < 0] =

Options

  1. A1 4
  2. B1 3
  3. C1 6
  4. D1 7

Correct answer

B. 1 3

Step-by-step solution

The cumulative distribution function defines F(x) = P(X x) for discrete X . Since -3 is the minimum value provided, P(X = -3) = F(-3) = 0.1 . Probability P(X Forming the ratio yields P(X = -3) P(X B .

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