<span>254.469
I googled this
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Answer:
P = (12/27)*(11/26) = 0.188
Step-by-step explanation:
Si todos tienen la misma probabilidad de estar en cargo de presidente y vicepresidente, entonces:
La probabilidad de que una mujer sea presidente, es igual al cociente entre el número de mujeres y el número total de personas:
p = 12/27
Ahora queremos calcular lo mismo para vicepresidente, y el cálculo es exactamente igual, con la diferencia de que en esta situación, ya hay una mujer en el cargo de presidente, entonces hay 11 mujeres que pueden ser vicepresidente, y un total de: (11 + 15 = 26 personas)
Entonces ahora la probabilidad es:
q = 11/26
La probabilidad conjunta (es decir, la probabilidad de que ambos eventos pasen) es igual al producto de las probabilidades individuales.
P = (12/27)*(11/26) = 0.188
Answer:
x=40
Step-by-step explanation:
80°+(2x+20)°= 180°... (co-interior angles are supplementary)
2x=180 - 80 - 20
2x=80
(divide both sides by the coefficient of x which is 2)
x=80÷2
x=40
Check:
(2x+20) must be equal to 100
Let x=40
Therefore :
2X40+20
=100
Answer:
(a) The expected value is: $0.40625
(b) The expected value is: $0.4286
Step-by-step explanation:
Solving (a): Raffle 1
Given
per ticket
---- for 1
--- for 2
Required
The expected value of each ticket
First, calculate the total amount of the 800 tickets
Next, calculate the total amount of the prizes
The expected value E(x) of 1 ticket is calculated as:
Solving (b): Raffle 2
Given
per ticket
---- for 1
--- for 3
Required
The expected value of each ticket
First, calculate the total amount of the 800 tickets
Next, calculate the total amount of the prizes
The expected value E(x) of 1 ticket is calculated as:
Answer:
Step-by-step explanation:
7th grade: 16
5th grade : 13
what is te relationship?: the 7th rade median is 3 points highher
hope this helped