Question: Explain whether each of the following is a valid probability distribution. If the probability distribution is valid, show why. Otherwise, show which conditions of a

Explain whether each of the following is a valid probability If the probability is valid, show why. Otherwise, show which conditions of a probability are not satisfied.
a.
x p(x)
-1.................. .2
0.................. .6
1.................. .2
b.
xP(x)
½................-1
¾.................0
1..................2
c.
XP(x)
2...................25
4...................35
6.................. .3
d.
xP(x)
.1................2/7
.7...............4/7
.9...............1/7

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