Download Chapter 4

Chapter 4
Discrete Random
Variables
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Figure 4.1 Venn diagram for coin-tossing
experiment
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Definition
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4.1
Two Types of Random Variables
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Definition
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Definition
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4.2
Probability Distributions for Discrete
Random Variables
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Figure 4.2 Venn diagram for the two-cointoss experiment
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Table 4.1
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Figure 4.3 Probability distribution for cointoss experiment: graphical form
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Definition
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Definition
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Figure 4.4 MINITAB Histogram for $5
Wager on Come-out roll in Craps
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4.3
Expected Values of Discrete Random
Variables
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Figure 4.5 Probability distribution for a twocoin toss
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Definition
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Definition
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Definition
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Procedure
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Figure 4.6 Shapes of two probability
distributions for a discrete random variable x
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Figure 4.7 Graph of p(x) for Example 4.8
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4.4
The Binomial Random Variable
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Definition
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Table 4.2
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Procedure
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Figure 4.8 Probability distribution for
physical fitness example: graphical form
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Table 4.3
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Definition
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Table 4.4
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Figure 4.9 Binomial probability distribution for
n=10 and p=.10, with P ( x  2) highlighted
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Figure 4.10 The binomial probability
distribution for x in Example 4.13; n=20 and
p=.6
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4.5
The Poisson Random Variable (Optional)
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Definition
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Procedure
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Figure 4.11 Probability distribution for
number of blue-whale sightings
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Table 4.5
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4.6
The Hypergeometric Random Variable
(Optional)
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Definition
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Procedure
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Figure 4.12 Probability distribution for x in
Example 4.15
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