Poisson Probability Computation

00:00 3 marks

  • Build Confidence
  • HL
  • Tier 2
  • Probability calculation
  • Probability mass function
  • Poisson distribution

A random variable \(X\) follows a Poisson distribution with a mean of \(\lambda = 4\). Compute \(P(X = 3)\) using the probability mass function of the Poisson distribution, where \(P(X=k) = \frac{\lambda^k e^{-\lambda}}{k!}\).

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Hint

Substitute \(\lambda = 4\) and \(k = 3\) into the Poisson PMF formula.

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Complete Answer

\(\frac{32e^{-4}}{3}\)

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