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nikitadnepr [17]
3 years ago
8

9 [1+345-(6-8 +48 x 23 -77​

Mathematics
1 answer:
melisa1 [442]3 years ago
6 0

Answer:

1933

Step-by-step explanation:

9 x (1 + 345) - 6 - 8 + 48 x 23 - 77

Use BODMAS method to solve these type of equation

B - Brackets

O - Power

D - Division

M - Multiplication

A - Addition

S - Subtraction

_________________________________________________________

Brackets - 1 + 345 = 346

Multiplication

9 x 346 = 3114

48 x 23 =  1104

Lets rewrite the equation now

3114 - 6 + 1104 - 77

Addition

6 + 1104 = 1110

Subtraction

3114 - 1104 = 2010

2010 - 77 = 1933

Answer = 1933

__________________________________________________________

Hope you understand

:-)

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Usando la distribución hipergeométrica,  la probabilidad de que los alumnos del colegio A obtengan los dos premios (no hay empates), es: 0.2 = 20%.

<h3>¿Qué es la fórmula de distribución hipergeométrica?</h3>

La fórmula es:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}

C_{n,x} = \frac{n!}{x!(n-x)!}

Los parámetros son:

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  • N es el tamaño de la población.
  • n es el tamaño de la muestra.
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Los valores de los parámetros son:

N = 6, k = 3, n = 2.

La probabilidad de que los alumnos del colegio A obtengan los dos premios (no hay empates), es P(X = 2), por eso:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}

P(X = 2) = h(2,6,2,3) = \frac{C_{3,2}C_{3,0}}{C_{6,2}} = 0.2

Puede-se aprender más a cerca de la distribución hipergeométrica en brainly.com/question/24826394

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4 0
2 years ago
there are 27 more green cars than black cars in the parking lot. What percentage of the cars in the parking lot are green? What
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Answer:

Black is 3.57%

Green is 96.43%

Step-by-step explanation:

Since 27 green than black

Let the black car be b

So green cars which 27 more than black means 27b

So to calculate the percentage of green we will have

27b/27b+b ×100

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Let's eliminate the b

27/28×100

2700/28

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So let's calculate for Black

b/27b+b ×100

b/28b ×100

Eliminate b

1/28 ×100

100/28

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Therefore the percentage for Black is 3.57% and for green is 96.43%

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Find the mean absolute deviation (mad) for this data. (remember to show your 4 steps) 88, 72, 85, 76​
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Answer:

Step-by-step explanation:

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x      |x-mean|

88     7.75  (88-80.25)

72     8.25  (80.25-72)

85     4.75   (85-80.25)

76      4.25  (80.25-76)

         --------

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      ______

mean absolute deviation=25/4=6.25

     

7 0
3 years ago
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