Lecture 4

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Unformatted text preview: xample •  Random variable –  Draw height from front row (now) •  Sample space –  Depends on the front row •  Realiza4on –  We have to pick one •  The probability mass func4on –  Equal mass at each point •  The distribu4on func4on –  Let’s plot it Density (for con4nuous random variables only!) •  The integral of f(x) from a to b is the probability that X is in the interval [a,b]. •  Or (a,b) or (a,b] or [a,b). •  P(X=x) = 0 for con4nuous random variables Example •  Flick a spinner, and record the angle (from...
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This document was uploaded on 03/02/2014 for the course STATS 4150 at Barnard College.

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