Question

4

20 points
Which of the following represents a valid probability distribution?
Probability Distribution D
X
P(x)
0.87
0.56
0
1.38
123
2
3
4
Probability Distribution C
P(x)
0.45
1.23
-0.87
0.19
X
1
2
2/3
3
4
Probability Distribution B
P(x)
0
0.45
0.16
0.39
X
1
2
3
4
Probability Distribution A
P(x)
-0.14
0.6
0.25
0.29
X
1
2
3
4

Answer 1

3rd option

Explanation:

In the third option all probabilities add up to 1 and in range 0≤ probability ≤ 1.