valariehorne
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

Answer Link

Otras preguntas

Al washed a car in 6 minutes. Fred washes the same car in 8 min. How long dies it take Al and Fred to wash the car together?
What is the approximate circumference if the circle that has a center at (2,1) ans passes through the point (2,5). 1. 8 units 2. 13 units 3. 25 units 4. 50 unit
What is the coefficient of y in the expression 12+3y-2x?
what is the cause and effect for the french citizens armies win their revolution for liberty and equality
The diameter of your bicycle wheel is 25 inches. How far will you move in one turn of your wheel?
Find an equivalent ratio for 22/55 then write the proportion ?
other name for blood
What is the approximate circumference if the circle that has a center at (2,1) ans passes through the point (2,5). 1. 8 units 2. 13 units 3. 25 units 4. 50 unit
Please tell me five slogans on conservation of natural vegetation.
solve 2/3 + 1/4x = 1/3