Probability and Statistics Notations Quiz
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Questions and Answers

What notation is commonly used for random variables?

  • Upper case roman letters (correct)
  • Lower case roman letters
  • Greek letters
  • Lower case italic letters

    • How is a cumulative probability formally written?

  • $P(X = x)$
  • $P(X eq x)$
  • $P(X extless x)$ (correct)
  • $P(X extgreater x)$

    • What does $P(X extless x)$ represent?

  • The probability that X is less than x (correct)
  • The probability that X is not equal to x
  • The probability that X is greater than x
  • The probability that X is equal to x

    • What does the notation $P(X extless x)$ help differentiate?

    <p>The random variable from its realization</p> Signup and view all the answers

    What does $ extstyle x_{1},x_{2}, extellipsis ,x_{n}$ represent?

    <p>Particular realizations of a random variable</p> Signup and view all the answers

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