SOLUTION: Determine whether each of the distributions given below represents a probability distribution. Justify your answer. (A) x 1 2 3 4 P(x) 0.3 1/5 1/5

Algebra ->  Probability-and-statistics -> SOLUTION: Determine whether each of the distributions given below represents a probability distribution. Justify your answer. (A) x 1 2 3 4 P(x) 0.3 1/5 1/5      Log On


   

Question 228883: Determine whether each of the distributions given below represents a probability distribution. Justify your answer.


(A)
x
1
2
3
4

P(x)
0.3
1/5
1/5
3/10



(B)
x
3
6
8

P(x)
0.2
3/5
3/10




(C)

x
20
30
40
50

P(x)
0.1
0.1
0.5
0.3

(Points: 6)
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
If the sum numbers under each P(x) is 1.0 then it is a probability distribution.
the sum of a and c are 1.0 so they are probability distributions.
.
Ed