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Probability and Statistics Online Test

20 questions in 30 minutes, drawn at random from 21 questions across 12 topics. Every question carries a written explanation.

Probability and Statistics practice tests are assembled fresh each time you start, so you can sit one repeatedly without meeting the same paper twice. The pool behind this test holds 21 questions across 12 topics and 1 subject.

  • 20 questions, selected at random each time you start.
  • 30 minutes, at 90 seconds a question.
  • One mark per question. No negative marking.
  • Every answer comes with a written explanation, not just a letter.

Start test

What the pool is made of

  • Probability and Statistics 21 questions · 9 topics · 100%

Difficulty of the question pool

  • Medium 10 questions · 48%
  • Hard 11 questions · 52%

Where the pool is deepest

  • Sampling Distributions 4
  • Joint Distributions and Covariance 4
  • Probability Axioms and Conditional Probability 3
  • Continuous Probability Distributions 3
  • Hypothesis Testing 2

Two things worth knowing

  • Answers carrying a written explanation100%
  • Questions that arrive in a set behind shared directions, as a real paper sets comprehension and puzzle blocks 2