valariehorne valariehorne

01-03-2017
Mathematics

contestada

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

Respuesta :

ChandrikaP ChandrikaP

04-03-2017

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

∑jpj=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

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