Probabilidad

Question 1

Fórmula para encontrar P(A o B) en eventos independientes

Answer 1

P(A or B) = P(B) + P(A) - P(A y B)

Question 2

¿Cómo saber si es permutación o combinatoria?

Answer 2

Permutación = Si importa el órden
Combinatoria = Si el órden no importa

Question 3

Cual es la missisippi rule

Answer 3

If there are n objects where A of them are alike, another B of them are alike, another C of them are alike, and so on, then the total number of possible arrangements =

n!/[(A!)(B!)(C!)….]

Question 4

Cual es el número de arrangement posibles en un circulo de n ítems

Answer 4

(n-1)!