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Week 7. Continuous Random Variable-I

Class Outline

Compare and Contrast with discrete random variable

  • From Discrete Uniform DU(K) to Uniform, U(0,1)
  • pmf vs pdf
  • Relation between the distribution function F(x) and pdf f(x) of a continous random variable
    F(x)=f(x).
  • pdf is not a probability but a funciton/tool for computing probability. Specifically,
    f(x)P(X=x)
    and
    P(aXb)=baf(x) dx.
  • Uniform U(0,1)
  • Exponential random variable $Exp(\lambda)$
  • Normal random variable $N(\mu, \sigma^2).$ (if time permits)

Homework 4

Textbook Sec 58 (Page 68): 5.1–5.6. To be discussed in class 11/1.

Week 7.5. Midterm 11/6 (二) Week 5-6. Discrete Random Variable-II
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