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Tail Bounds Computer Science Rice University What Is This About? - PowerPoint PPT Presentation

COMP 480/580 Probabilistic Algorithms and Data Structures Luay Nakhleh Tail Bounds Computer Science Rice University What Is This About? How large can a random variable get? In other words, how far can a value that the random variable


  1. COMP 480/580 Probabilistic Algorithms and Data Structures Luay Nakhleh Tail Bounds Computer Science Rice University

  2. What Is This About? ❖ How large can a random variable get? ❖ In other words, how far can a value that the random variable takes be from its mean?

  3. mean

  4. mean tails

  5. mean how large? tails

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  7. Recall ❖ A random variable is a function from the sample space of an experiment/process to the set of real numbers. ❖ A coin is tossed twice. Let X(t) be the random variable that equals the number of heads that appear when t is the outcome. Then X(t) takes on the following values: ❖ X(HH)=2 ❖ X(HT)=X(TH)=1 ❖ X(TT)=0

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