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Leya [2.2K]
3 years ago
12

What are the values of the mean and standard deviation of a standard normal distribution?

Mathematics
1 answer:
Llana [10]3 years ago
4 0
Answer:  
__________________________________________________
            "A standard normal distribution has a mean of "0" and a standard deviation of "1" .
__________________________________________________
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I^2+1=<br><br> Answer choices:<br> 1-i <br> 1+i <br> 0<br> 2
Sholpan [36]

Answer:

0

Step-by-step explanation:

i^2+1

We know that i^2 = -1

-1 +1

0

3 0
3 years ago
Pls help this is another question for my quizzzizz test
irakobra [83]
They are not similar. The angles are not equal
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3 years ago
a school debate team has 4 girls and 6 boys. A total of 4 of the team members will be chosen to participate in the district deba
Gemiola [76]
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5 0
3 years ago
Use the net as an aid to compute the surface area (rounded to the nearest integer) of the triangular pyramid with an equilateral
aleksandrvk [35]

Answer:

Correct answer is C)\ 254\ m^{2}

Step-by-step explanation:

As per the given diagram, we know the following details:

Height of the triangular pyramid is <em>14m</em>.

<em>Side of base</em> = <em>10m </em>

Height of Triangular base = <em>8.7m</em>

Formula for <em>surface area of triangular pyramid</em>:

\text{Area = Area of Triangular base + 3 }\times\text{Area of side triangle}

(Triangular base is shown in the dotted lines in the question figure.

The other 3 triangles are the side triangles.)

We know that,

\text{Area of a triangle = }\dfrac{1}{2} \times \text{Base} \times \text{Height}

\Rightarrow \text{Required Surface Area = } \dfrac{1}{2} \times 8.7 \times 10 + 3 \times \dfrac{1}{2} \times 14 \times 10\\\Rightarrow \dfrac{1}{2}\times (87 + 3 \times 140)\\\Rightarrow \dfrac{1}{2}\times (87 + 420)\\\Rightarrow \dfrac{1}{2} \times 507\\$\approx$ 254 m^{2}

Hence correct answer is C)\ 254\ m^{2}.

3 0
3 years ago
Si el área de una figura rectangular esta dada por A-bxh,¿cual es la siguiente expresiones representa el área de la puerta
stealth61 [152]

Respuesta:

3x² + 5x - 2

Explicación paso a paso:

Dado que :

Área del rectángulo, A = largo * ancho

Dimensión = 3x - 1; x + 2

Área = (3x - 1) * (x + 2)

Área = 3x² + 6x - x - 2

Área = 3x² + 5x - 2

8 0
3 years ago
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