Si X es una variable aleatoria de tipo continuo… ¿Es posible definir el índice de asimetría de Fisher? ¿Por qué?

Answers

Answer 1

Answer:

Primero, para un caso discreto, el índice de asimetría de Fisher se calcula como:

[tex]\frac{\sum(xi - M)*n_i}{N*S_x}[/tex]

Donde:

xi son los i-esimos distintos valores de nuestro conjunto de datos.

M es la media

N es el numero de datos

ni es la frequencia absoluta de cada xi

Sx es la desviacion tipica

Podemos ver que en el caso discreto, escribimos el coeficiente con una sumatoria, lo cual realmente no podemos hacer para una variable continua.

Lo que si podemos hacer para una variable continua, es una integral, donde como esta vez tenemos una variable continua, podemos definir una función:

f(X) = frequencia absoluta para X.

Y escribir el coeficiente como:

[tex]\frac{\int\limits^a_b {(X - M)*f(x)} \, dx }{N*S_x}[/tex]

Entonces si, es posible definir el índice.


Related Questions

Students standing in line for a theme park were surveyed about their favorite ride. Their responses are shown below. If one student is picked randomly, then which of the following is true?

Answers

Answer:

H is the answer

Step-by-step explanation:

14 is 1/2 of 28

Which expression(s) have a greatest common factor (GCF) of 3xy2 with 42xYA?
Select all that apply.
A. 6x2y2
B. 15xyz
C. 27x3y2
D. 9xy3

Answers

You first determine the GCF of the terms
For the numerical coefficients of 12,6 and 9, The GCF is 3....for the x^3, y^3, the GCF is 3, thus 3xy.
Divide each of the terms by the GCF

help!? me please help mee​

Answers

Answer:

X=7

Step-by-step explanation:

in order to get everything out of the square root, just square both sides.

This will give you x + 1 = 2x - 6

move like terms to each side and you’ll end up with x = 7

FASST PLEASE ANSWER NO LINKS!!!!!

Answers

Answer:

180

Step-by-step explanation:

Answer: 180 is the correct answer. Hope this helps!!!!

Step-by-step explanation:

Can you please help me on #12 pls
And also no links

Answers

Answer:

12) Well follow the orders of operations

Parentheses

Exponents

Mulitpacation - division (left to right)

Addition - subtraction (left to right)

Well we see an exponents lets do that first

6^2=36

And basically theres these parenthesis on the side for each so really its

(8+36) / (11)

This only occurs if the number is presented like this as diviosn or a fraction.

Now we solve that

8+36= 44

44/11=4

4+7*2

Thats the final equation

Well multiply first

7*2=14

14+4=18

The answer would be 18

1. What is the area of the trapezoid? The diagram is not drawn to scale.

Answers

The answer is 72 because u find the area of the square then the triangles :)

what does 41 = w - 4

Answers

W=45 when you add over the -4 to get the w variable by itself
41 + 4 = w
45 = w
Therefore, 45 is the solution.

Ordan is cutting a 2 m 2 m2, start text, space, m, end text by 1 1 4 m 1 4 1 ​ m1, start fraction, 1, divided by, 4, end fraction, start text, space, m, end text piece of rectangular paper into two pieces along its diagonal. Find the area of each of the pieces. m 2 m

Answers

Answer:

5/4 m²

Step-by-step explanation:

Jordan is cutting 2 m by 1 1/4 m piece of rectangular paper into 2 pieces along its diagonal.What is the area of each of the pieces.

Length of the rectangular paper = 2m

width of the rectangular paper = 1 1/4m

Area of a rectangle = Length × width

= 2 × 1 1/4

= 2 × 5/4

= (2 * 5)/4

= 10/4 m²

Area of a rectangle = 10/4 m²

Diagonal divides the rectangle into 2 equal pieces

Divide area of the rectangle by 2

Area of each piece of the diagonal = Area of the rectangle / 2

= 10/4 m² / 2

= 10/4 ÷ 2

= 10/4 × 1/2

= (10*1) / (4*2)

= 10/8

= 5/4 m²

Area of each piece of the diagonal = 5/4 m²

Please help me y’all i’m begging!!!!

Answers

Answer:

212

Step-by-step explanation:

0.5*11*10=55

3.14*10*10/2=157

157+55= 212

can somebody please just explain to me how to do this, it says solve for x in each diagram. I already answered the first question and I just want to make sure that I'm doing it​

Answers

Answer:

u did it right

Step-by-step explanation:

solve it like this

2x -7 = 47

2x = 47 + 7

2x =  54

54/2

x= 27

Please mark as brainliest

Have a great day, be safe and healthy  

Thank u  

XD

Factorise full the following x squared +2x

Answers

Answer:

x(x+2) is the answer please

Step-by-step explanation:

x²+2x

x(x+2)

Why is a negative times a negative always a positive?

Answers

Answer: A negative times a negative is always positive because the two negative signs are canceled out.

Step-by-step explanation:

If you seek a more in-depth explanation, Khan Academy actually has a video available on this topic!

Beth has 50 blueberry scones and 75 cranberry scones. She wants to make as many identical bags as possible. Each bag should have an equal number of cranberry and blueberry scones. What is the greatest number of bags she can fill?

Answers

Answer:

The greatest number of bags she can fill is 50.

Step-by-step explanation:

If each bag must have an equal number of cranberry and blueberry scones, she is limited to 50 bags by only having 50 blueberry scones.

Delilah and a group of friends had an excellent service at a restaurant. They would like to give the server a 25 percent gratuity on their $140 bill. Use the diagram to identify the amount of the tip.

Answers

25. X
—— ——
100. 140

Just multiply 140 x 25 =3500 then Divide by 100 = 35

The answers 35

Answer:

The answer is $35

Is 7/8 bigger than one or greater or equal to one

Answers

Answer:

7/8 is less than 1, sure it is close to one but not 1.

What is the domain and range for the function below:
y = log2 (x - 1)+4

Answers

Answer:

I smell gas

Step-by-step explanation:

What is the expanded form of 54,582? *
1 point
5 x 100,000 + 4 x 1,000 + 5 x 100 + 8 x 10 + 2 x 1
5 x 10, 000 + 4 x 1,000 + 5 x 1/10 + 8 + 1/100
5 x 1,000,000 + 4 x 10,000 + 5 x 100 + 8 x 10 + 2 x 1
5 x 10,000 + 4 x 1,000 + 5 x 100 + 8 x 10 + 2 x 1

Answers

Answer:

5 x 10,000 + 4 x 1,000 + 5 x 100 + 8 x 10 + 2 x 1

Step-by-step explanation:

all the other ones  are incorrect

Rose cuts 3 feet from a ​9-foot length of rope. Then she cuts 13 inches from the rope. How many inches of rope are​ left?

Answers

9ft-3ft=6ft
12 inches in 1 foot
6 x 12 = 72 inches
72in - 13in = 59in

Answer: 59 inches left

Answer:

uh hajsjdjjfhdbdjdjjdjvjjvjfjrbdbjfhxbfjxj

Step-by-step explanation:

ok

what is the range of the data set on this dot plot
A.
B.
C.
D.

Answers

Answer:

B

Step-by-step explanation:

Subtract the minimum number from maximum number.

[tex]10 - 2 = 8[/tex]

Not sure if i got this right?

Answers

Answer:

The effect it will have on the volume is;

The volume will be 8 times larger

Step-by-step explanation:

The dimensions of the given prism are;

The length of the prism, l = 5 in.

The breadth of the prism, b = 5 in.

The slant height of the prism,  = 4 in. by 5 in.

The height of the prism, h = 7 in.

The shape of the prism = Parallelepiped

The volume of a parallelepiped = Area of Base × Height of the prism

The base area of the parallelepiped = The length × Breadth of the parallelepiped

∴ The base area of the given parallelepiped = 5 in. × 5 in. = 25 in.²

The volume of the given parallelepiped, V₁ is found as follows;

V₁ = 5 in. × 5 in. × 7 in. = 25 in.² × 7 in. = 175 in.³

When a scale factor of 2 in applied to the dimensions of the prism, we have;

The new volume, V₂ =  2 × 5 in. × 2 × 5 in. × 2 × 7 in.

∴ V₂ = 2 × 2 × 2 × 5 in. × 5 in. × 7 in. = 8 × 5 in. × 5 in. × 7 in. = 8 × V₁

Therefore;

V₂ = 8 × V₁

The volume of the image of the object, V₂ after applying a scale factor of 2 is 8 times larger than the volume of the object, V₁.

please help if you know
Complete the equations with powers of 10

Answers

Answer:

1.  x1000

2. x100

3. x10

Step-by-step explanation:

when multiplying by powers of 10 how ever many 0's are after the 1 move the decimal that many times to the right

example:

411.92x100=41192

notice 2 0's after the 1 so i move the decimal 2 times to the right

When rolling a number cube 500 times, how many times can you expect to roll a number divisible by 2?

Answers

Answer:

You can expect to roll a number divisible by 2, 167 times

Step-by-step explanation:

In the picture,...

Marsha deposited ​$7,500 into a savings account 5 years ago. The simple interest rate is 3​%. How much money did Marsha earn in​ interest? What would be her new account​ balance?

Answers

they made $1125 and the new balance is $8625

Answer:

earned in intrest would be 450.

Step-by-step explanation:

i did the assingment

In ΔKLM, k = 5.1 cm, l = 6.4 cm and m=3.6 cm. Find the area of ΔKLM to the nearest 10th of a square centimeter.

Answers

Answer:

eIn ΔKLM, k = 5.1 cm, l = 6.4 cm and m=3.6 cm. Find the area of ΔKLM to the nearest 10th of a square centimeter.

Step-by-step explanation:

ee

Answer:

9.2

Step-by-step explanation:

Which expression is equivalent to: -3a-7a+4b
A: -10a-7+4b
B: -10a+4b
C: -14ab
D: -4a+4b

Answers

Answer and working out. Hope it helps

Answer:

-10a+4b

hope this answer helps you.....

CHOOSING BRAINLIEST. SCREENSHOT PROVIDED
The two triangles are congruent. Find the unknown variables.

Answers

Answer:

I think

y= 71

x = 14

z = 18

also those are trapezoids

Step-by-step explanation:

The graph of F(x), shown below, has the same shape as the graph of G(x) = x2, but it is shifted to the left 2 units. What is its equation?

Answers

Answer: F(x)=(x+2)²

Step-by-step explanation:

find the value of b if triangles are similar

Answers

Answer:

9 because the constant of proportianlity is 3/4 and 3/4 of 12 is 9.

an alloy contains nickel and chromium in 3:2 ratio, find the mass of each metal in 540g of alloy.​

Answers

Answer:

Let the mass of nickle be 3x

And the mass of chromium be 2x

According to question,

3x+2x = 250

5x = 250

x =250/5

x = 50

HELP OMGGGGGGGGG PLSSS

Answers

Step-by-step explanation:

find the area of the big rectangle [ 8 * 18]

find the area of the small triangle [½ * 8 * 8]

calculate the difference of the 2 areas.

that's Ur answer

Answer:

B. [tex] 112 \: {in}^{2} [/tex]

Step-by-step explanation:

Area of the shaded region = Area of rectangle with dimensions 18 in and 8 in - Area of triangle with base 8 in and height 8 in

[tex] = 18 \times 8 - \frac{1}{2} \times 8 \times 8 \\ \\ = 144 - 32 \\ \\ = 112 \: {in}^{2} [/tex]

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