The following distribution is not a probability distribution because X 0 1 2 P(X

Question

The following distribution is not a probability distribution because

X

0

1

2

P(X)

0.20

0.17

–0.19

0.52

0.30

A)

values of the variable are negative.

B)

a probability is negative.

C)

the probability values do not add to 1.

D)

the probability values are not discrete.

The following distribution is not a probability distribution because

X

2

1

0

1

2

P(X)

0.20

0.17

–0.19

0.52

0.30

A)

values of the variable are negative.

B)

a probability is negative.

C)

the probability values do not add to 1.

D)

the probability values are not discrete.

Explanation / Answer

p(X) should be equal to 1

To be a probability distribution, but 0.20+0.17+(-0.19)+0.52+0.30 = 1

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