Actuarial Notes

Exam MAS-I Practice Question 44

Study guide: Exam MAS-I

Losses X_1, X_2, \ldots, X_n are a random sample from a uniform distribution on (0, \theta). Five estimators of \theta are proposed.

Which estimator does not converge in probability to \theta as n \to \infty?

  • A) The largest loss, X_{(n)}
  • B) \sqrt{3 \cdot \frac{1}{n}\sum_{i=1}^{n} X_i^2}
  • C) Twice the sample median
  • D) Twice the sample mean plus n^{-1}
  • E) The first two losses summed, X_1 + X_2

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