En una academia hay 3 aulas, el aula roja, el aula azul, y el aula negra. Los estudiantes están reportados de la siguiente manera: . el aula roja tiene el 50% de los estudiantes
. el aula azul, tiene el 30%de los estudiantes.
. el aula negra tiene, tiene el 20% de los estudiantes.

Los hombres están reportados de manera uniforme, pues en cada aula hay un 40% de hombres, si se selecciona estudiante al azar:

a)¿Cuál es la probabilidad de que sea una mujer del aula azul?
b)¿Cuál es la probabilidad de que sea hombre del aula negra?

To solve this problem, we just have to multiply.

(A) The event: woman in the blue class room is related to 60% of women representation and 30% of students representation in the blue classroom.

Therefore, the chances of choosing a woman student from the blue classroom is

Which is equivalent to 18% of probability.

We apply the same process to find the probability of choosing a man from the black classroom.

Which is equivalent to 8% of probability.

hi there!

the answer will be d: 2

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies