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Probability statistics for engineers and scientists 9th by walpole myers chapter 03

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Chapter 3
Random
Variables and
Probability
Distributions

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Section 3.1
Concept of a
Random Variable

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Definition 3.1

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Definition 3.2

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Definition 3.3



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Section 3.2
Discrete
Probability
Distribution

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Definition 3.4

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Definition 3.5

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Figure 3.1 Probability mass
function plot


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Figure 3.2 Probability histogram

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Figure 3.3 Discrete cumulative
distribution function

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Section 3.3
Continuous
Probability
Distributions

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Figure 3.4 Typical density

functions

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Figure 3.5 P(a < X < b)

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Definition 3.6

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Definition 3.7

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Figure 3.6 Continuous cumulative
distribution function


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Section 3.4
Joint Probability
Distributions

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Definition 3.8

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Table 3.1 Joint Probability
Distribution for Example 3.14

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Definition 3.9


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Definition 3.10

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Definition 3.11

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Definition 3.12

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Definition 3.13

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