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Chapter 8: Discrete Probability Distributions
Figure 8-1:
Display of the Relationship between the
Sample Space and the values of X when
tossing a single coin
Next, consider the example of a two-child family. Recall that the sample
space is
S
= {
BB
,
BG
,
GB
,
GG
}. Let the number of girls in a two-child
family be denoted by
X
. Then the possible values for
X
will be 0, 1, and 2.
Thus,
x
= 0, 1, 2.
Figure 8-2
shows the relationship between the sample
space
S
, and the values of
X
, the number of girls in a two-child family.