Which of the following are valid probability distributions for a discrete random variable? Check all that apply.

A.(0.01) 11, (0.01) 12, (0.01) 13, ...
B.0.19, 0.19, 0.225, 0.231, 0.164
C.0.14, -0.04, 0.28, 0.10, 0.13, 0.07, 0.13, 0.29, 0.34, -0.27, -0.22, 0.05
D.0.34, 0.19, 0.20, 0.07, 0.16, 0.04
E.0.17, 0.11, 0.03, 0.07, 0.23, 0.04, 0.16, 0.01, 0.18

Question

Which of the following are valid probability distributions for a discrete random variable? Check all that apply.

A.(0.01) 11, (0.01) 12, (0.01) 13, ...
B.0.19, 0.19, 0.225, 0.231, 0.164
C.0.14, -0.04, 0.28, 0.10, 0.13, 0.07, 0.13, 0.29, 0.34, -0.27, -0.22, 0.05
D.0.34, 0.19, 0.20, 0.07, 0.16, 0.04
E.0.17, 0.11, 0.03, 0.07, 0.23, 0.04, 0.16, 0.01, 0.18

anonymous · Answer

not an expert in this topic, but i feel it should be A? others seem to make no sense to me.

anonymous · Answer

Im pretty sure it is more than just A. it can be more than one answer to this problem,.. IDK it confuses me,

anonymous · Answer

i think your job may be to add the numbers and see if the total is 1

directrix · Answer

All the probabilities must be between 0 and 1 inclusive The sum of the probabilities of the outcomes must be 1. Read more at the link: http://people.richland.edu/james/lecture/m170/ch06-prb.html