The sum of all the probabilities P(X = x) for all possible values of a discrete random variable X must equal 1.
Select one:
a.
The statement is NOT ALWAYS FALSE
b.
The statement is FALSE.
c.
The statement is TRUE.
d.
The statement is NOT ALWAYS TRUE
Select one:
a.
The statement is NOT ALWAYS FALSE
b.
The statement is FALSE.
c.
The statement is TRUE.
d.
The statement is NOT ALWAYS TRUE
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Answer:
D
Explanation:
It is because the sum of all probabilities for all possible values are not always equal to 1