Math Problem Statement
An number cube (a fair die) is rolled 3 times. For each roll, we are interested in whether the roll comes up even or odd. An outcome is represented by a string of the sort
oee
(meaning an odd number on the first roll, an even number on the second roll, and an even number on the third roll).
For each outcome, let
N
be the random variable counting the number of odd rolls in each outcome. For example, if the outcome is
oeo
, then
=Noeo2
. Suppose that the random variable
X
is defined in terms of
N
as follows:
=X−2N2−4N1
. The values of
X
are given in the table below.
Outcome
eee
ooo
eeo
eoo
ooe
oeo
eoe
oee
Value of
X
−1
5
−3
−1
−1
−1
−3
−3
Calculate the probabilities
P=Xx
of the probability distribution of
X
. First, fill in the first row with the values of
X
. Then fill in the appropriate probabilities in the second row.
Value
x
of
X
P=Xx
Solution
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Math Problem Analysis
Mathematical Concepts
Probability Theory
Random Variables
Probability Distributions
Formulas
-
Theorems
-
Suitable Grade Level
Advanced High School
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