# Question

Each of the following tables lists certain values of x and their probabilities. Verify whether or not each represents a valid probability distribution and explain why.

a.

x P(x)

0.... .10

1.... .05

2.... .45

3.... .40

b.

x P(x)

2.... .35

3.... .28

4.... .20

5.... .14

c.

x P(x)

7.... –.25

8.... .85

9.... .40

a.

x P(x)

0.... .10

1.... .05

2.... .45

3.... .40

b.

x P(x)

2.... .35

3.... .28

4.... .20

5.... .14

c.

x P(x)

7.... –.25

8.... .85

9.... .40

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