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Chapter 8: Discrete Probability Distributions
Section Review
8-3 Probability Distributions for Discrete Random Variables
We will generate the concept of discrete probability distributions through an
illustration.
Illustration 1:
Given that two items are selected from a manufacturing
process to check whether an item may be classified as defective or non-
defective.
We will denote the event of a defective item as
D
and the event of a
non-defective item as
N
. Thus the corresponding sample space will be
S
= {
DD
,
DN
,
ND
,
NN
}. The tree diagram for this process is given in
Figure 8-5
.
Figure 8-5:
Tree diagram for the Two Item Illustration
e-Self Review