4.2 Expected Values of Random Variables iggl 4' Ol/l
Suppose you have a set of numbers. How would you calcul: uyl I a
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Then, suppose one of those values occurs multiple times.
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6.2 The Gamma Distribution
A random variable X is said to have a gamma distribution with
parameters r and f its probability density function is given by
r xr 1e x
fX x r
where is the gamma function, r and positive real numbers.
Chapter 5: Continuous Random Variables and Probability
Why are these properties required? Notice that the area under f and
between x = a and x = b gives you the probability that X is between a
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3.2 Conditional Probability
Suppose that a six-sided die is rolled. Let A cfw_1, 2, 3and B cfw_1, 2, 4, 6.
What if you were told that the die had been rolled, and the outcome was
an even number? This affects the probabilities of A and