Question: Explain why this is or is not a probability distribution, x 1 2 3 4 P(x) 0.4 0.3 0.3 0.0 & A USA Snapshot titled:

Explain why this is or is not a probability distribution,

x

1

2

3

4

P(x)

0.4

0.3

0.3

0.0

&

A USA Snapshot titled: Are you getting a summer job? Interviews with high school students produced the following.

49% Yes

26% Maybe

25% No

a. What are the variables involved?

b. Why is this variable not a random variable?

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