Explain why this is or is not a probability distribution.

x

1

2

3

4

P (x)

0.2

0.1

0.4

0.2

Question

Shaniya Lloyd

Mathematics

6 January, 09:58

Explain why this is or is not a probability distribution.

x

1

2

3

4

P (x)

0.2

0.1

0.4

0.2

+1

Answers (1)

Know the Answer?

Damon Paul · Answer 1

The sum of p (x) over all possible values of x is 1, that is

∑j pj = 1

where j represents all possible values that x can have and pj is the probability at xj.

yes it is probability distribution

all sum is 0.9

all probability between 0 and 1

Explain why this is or is not a probability distribution.x1234P (x)0.20.10.40.2

Explain why this is or is not a probability distribution.

x

1

2

3

4

P (x)

0.2

0.1

0.4

0.2