Respuesta :
No it cannot, because it is the number in and of itself, not an equation that adds up to one. Hope it helped!
Answer:
The correct options are B, D and E.
Step-by-step explanation:
The basic requirement for a valid probability distribution for a discrete random variable are
1. All probability must between 0 and 1.
2. Sum of all the probabilities must be 1.
In option A,
0.21, 0.16, -0.08, 0.05, 0.04, 0.03, -0.24, 0.12, 0.21, 0.18, 0.32
The probability of an event can't be negative. So, option A is incorrect.
In option B,
0.18, 0.12, 0.03, 0.08, 0.21, 0.04, 0.05, 0.16, 0.13
All values lie between 0 and 1. Sum of all probabilities is
[tex]0.18+0.12+0.03+0.08+0.21+0.04+0.05+0.16+0.13=1[/tex]
Sum of probability is 1. So, option B is correct.
In option C,
0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1
All values lie between 0 and 1. Sum of all probabilities is 1.1, which is more than 1.
So, option C is incorrect.
In option D,
0.1, 0.2, 0.3, 0.4
In option D,
0.1, 0.2, 0.3, 0.4
All values lie between 0 and 1. Sum of all probabilities is 1.
So, option D is correct.
In option E,
1.0
The probability of an event is 1 if it is certain to happen.Sum of all probabilities is 1.
So, option E is correct.
Therefore the correct options are B, D and E.
