Which of the following is NOT true?
A F(x) cumulates the values of f(i) for i less or equal to x.
B F(x) greater or equal to f(x) for all x in Im(X).
C If we know f we can find F.
D f(x) > F(x) for all x in Im(X).
The fundamental property of a pmf f is:
A Sum of all its values = 1.
B Sum of all its values is a natural number > 1.
C Sum of all its values is a probability in (0,1).
D Sum of all its values is 0.
The Image (Range) of a random variable X is:
A The set of all values {X(s); s in S}
B The set of all values {X(s); s real number}
C The whole set of real numbers
D The set of all outcomes s in S for which P({s})=1
Answer - 1: f(x) > F(x) for all x in Im(X) is not correct.
Option D is the correct choice.
Answer - 2: Fundamental property: Sum of all its values = 1
Option A is correct.
Answer - 3: The Image (Range) of a random variable X is the set of all values {X(s); s in S}.
Option A is correct.
Which of the following is NOT true? A F(x) cumulates the values of f(i) for i...