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2.1.5 Mean, Variance and
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2.1 Probabilities and Random
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2.1.3 Probability Distributions
2.1.4 Probability densities
What if
is continuous?
Example:
= population of freshman
= height
= weight
= blood pressure
Definition 7
A continuous random variable
has a
density function
if:
for every
and
(
).
Remarks:
Area under the curve gives probabilities.
Eran Borenstein
2007-05-04