Un conjunto de 10 000 observaciones tiene una distribución normal con media de
450. Si 1700 de ellas están comprendidas entre 450 y 460. ¿Cuál es la desviación
estándar?

Answers

Answer 1

Answer:

567898765

Step-by-step explanation:


Related Questions

help plz for brainliest

Answers

0.95

Explanation: divide 19 by 20, and you will get .95! Hope this helps!

Human population numbers are in constant flux. Suppose a country has a population of 20 million people at the start of one year and during the year there are 600,000 births, 350,000 deaths, 100,000 immigrants, and 5,000 emigrants. You and your classmates will determine the total population at the end of the year and then model expected change over a longer period.

Answers

nothing yw listen to your teacher

Solve the equation if 0°≤x≤360°*tan x =√3

Answers

Answer: This is a trig relationship from one of our special triangles, the 30-60-90 triangle.

Tan x = the opposite side of angle x divided by the adjacent side of angle x

The tangent is √3 when x = 60° or π/3

However, in this problem the value of the tangent is negative. In which of the four quadrants is the tangent function negative?

This function is negative in the second and fourth quadrants or when x = 120 and 300 degrees (or 2pi/3 and 5pi/3)

***I am assuming that the negative sign should be outside of the square root sign***

I need help with this math problem

Answers

Answer:

F(x)=(x+6)^2

Step-by-step explanation:

Hope this helps!

ecuacion primer grado para hoy 7x+2=8x+5

Answers

Answer:

[tex]7x + 2 = 8x + 5 \\ collecting \: like \: terms \: \\ 7x - 8x = 5 - 2 \\ - 1x = 3[/tex]

(ecuacion primer grado para hoy. ). what does this mean..

Answer:

7x+2=8x+5

Recopilar términos semejantes

7x - 8x = 5 - 2-1x = 3x = 3/-1x = - 3

(( BRAINLISET QUEATION ))
The temperature of a room is -4 degree Celsius. The temperature of the heater is 16 degree Celsius. How many degrees more than room temperature is the heater?

Answers

Answer:

Step-by-step explanation:

Under steady state condition heat released to the room=heat dissipated out of the room Let θ be the temperature of heater Then

θ−20=α[20−(−20)] .(i)

and θ−10=α[10−(−40)] .(ii) Solving Eqs. (i) and (ii) we get

we get

θ=60∘C

Please help! Will give brainliest if the answer is correct!

Answers

Answer:

74 + 43[tex]\sqrt{3}[/tex]

Step-by-step explanation:

For this problem, let's say side x is 2 + [tex]5\sqrt{3}[/tex] and side y is 7 + [tex]4\sqrt{3}[/tex].

To find the area of a rectangle, you need to multiply both height and width, and in this case, x and y.

(x)(y) = 14 + 8[tex]\sqrt{3}[/tex] + 35[tex]\sqrt{3}[/tex] + 60

= 74 + 43[tex]\sqrt{3}[/tex]

S= 2LW + 2LH + 2WH
solve for W

Answers

Rewrite the equation as

2lw+2lh+2wh=a.2lw+2lh+2wh=a

Subtract

2lh

from both sides of the equation.

2lw+2wh=a−2lh

Factor

2w out of 2lw+2wh.

2w(|+h)=w−2lh

Divide each term by

2(l+h)

and simplify.

.w=a−2lh2(l+h)

Please do number 4!!!!!

Answers

Answer:

just put the 25 into the equation, and you get the M, as the money she earn

2.5(25) + 12 = 74.5 that is the amount she earns

Answer: 74.5

Step-by-step explanation:

M = money = ?

f = faces she paint = 25 faces

M = 2.50(f) + 12 —> ? = 2.50(25) + 12 = 74.5

Consider the following game. The diamonds are taken out of a deck of cards, and are shuffled randomly. You pay $5 to pick one of the diamonds. If you pick the ace of diamonds, you win $20. If you pick the jack, queen, or king, you win $10. However, if you pick any other card, then you don't win any money. What is the expected value of this game? Is it in the player's favor to play this game? Why or why not?

Answers

Answer:

It is not in the players favor because there is a 4/13 chance that the player will win money. That"s not even 50%. So its up to the player if they want to take that risk but its a 0.3% chance that the player will win money.

Hope this helps :)

A fair die is rolled 10 times, what is the probability to get 4 ones.

Answers

Answer:

7/128

Step-by-step explanation:

Bag A contains 3 red balls and 1 blue ball. Bag B contains 1 red ball and 1 blue ball. You perform the following experiment. First, randomly pick one ball from each bag. Next, place the ball from bag A into bag B and the ball from bag B into bag A. What is the expected number (or mean) of red balls in the bag A

Answers

Answer:

2

Step-by-step explanation:

because the tree you must have more red balls than blue

the cylinder has radius 4√3 and hight h. the total surface area of the cylinder is 56π√6. find the exact value of h giving the answer in the form a√2 + b√3 where a and b are both integers.​

Answers

The area of the cylinder is a function of its height (h) and radius, ([tex]\mathbf{4\sqrt 3}[/tex])

The exact value of h is: [tex]\mathbf{7\sqrt 2- 4\sqrt 3}[/tex]

The given parameters are:

[tex]\mathbf{Area =56\pi\sqrt 6}[/tex]

[tex]\mathbf{r=4\sqrt 3}[/tex]

The surface area of a cylinder is calculated as:

[tex]\mathbf{Area = 2\pi rh + 2\pi r^2}[/tex]

Substitute values for Area

[tex]\mathbf{56\pi\sqrt 6= 2\pi rh + 2\pi r^2}[/tex]

Divide through by pi

[tex]\mathbf{56\sqrt 6= 2 rh + 2r^2}[/tex]

Substitute value for r

[tex]\mathbf{56\sqrt 6= 2 (4\sqrt 3)h + 2(4\sqrt 3)^2}[/tex]

[tex]\mathbf{56\sqrt 6= 8h\sqrt 3 + 2\times 48}[/tex]

[tex]\mathbf{56\sqrt 6= 8h\sqrt 3 + 96}[/tex]

Collect like terms

[tex]\mathbf{8h\sqrt 3 = 56\sqrt 6- 96}[/tex]

Make h the subject

[tex]\mathbf{h = \frac{56\sqrt 6}{8\sqrt 3}- \frac{96}{8\sqrt 3}}[/tex]

[tex]\mathbf{h = 7\sqrt 2- \frac{12}{\sqrt 3}}[/tex]

Rationalize

[tex]\mathbf{h = 7\sqrt 2- \frac{12\sqrt 3}{3}}[/tex]

[tex]\mathbf{h = 7\sqrt 2- 4\sqrt 3}[/tex]

Hence, the exact value of h is: [tex]\mathbf{7\sqrt 2- 4\sqrt 3}[/tex]

Read more about surface areas t:

https://brainly.com/question/25131428

Convert the following equation into Slope Intercept Form "y=mx+b".

y-7=1/3(x+15)

Answers

Answer:

 Slope = 0.667/2.000 = 0.333

 x-intercept = 36/-1 = -36.00000

 y-intercept = 36/3 = 12

Step-by-step explanation:

The answer is y= 1/3x+12

/////////////////////////////////////////////////

Answers

Answer:

341

Step-by-step explanation:

We observe the pattern:

1, 5, 13, 25, ..

It can be put as:

0 + 1, 1 + 4, 4 + 9, 9 + 16, ..

or

0² + 1², 1² + 2², 2² + 3², 3² + 4², ..

The nth term is going to be:

(n - 1)² + n²

The sum of the 31 terms will be:

N = 0² + 1² + 1² + 2² + 2² + 3² + 3² + ... + 30² + 30² + 31²

or

N = 2(1² + 2² + 3² + ... + 30²) + 31²

Use the formula for sum of the first n squares:

1² + 2² + 3² + ... + n² = n(n + 1)(2n + 1)/6

The sum N equals:

N = 2(30*31*61)/6 + 31² = 10*31*61 + 31²

And the value of N/31 is:

10*31 + 31 = 341

Dilate the figure by the scale factor. Then enter
the new coordinates.
K = 2



Answers

Answer:

A = (-6, 4)

B = (2,2)

C =  (-2, 2)

Step-by-step explanation:

If a coordinate (x, y) is dilated by a factor of k, the resulting coordinate will be expressed as (kx, ky). Note that each coordinate is multiplied by the scale factor  Given the coordinates (-3,2),(1,1)(-1,-1), if they are dilated by a factor of 2, the resulting coordinate will be;

A = (2(-3), 2(2)) = (-6, 4)

B = (2(1),2(1)) =(2,2)

C = (2(-1), 2(-1)) = (-2, 2)

Simplify the linear expression. −2x+3(−5x+1) Enter your answer in the box.

you will get brainiest

Answers

Answer:

3/17

Step-by-step explanation:

-2x + 3(-5x + 1)

-2x -15x +3

-17x + 3

17x = 3

x = 3/17

73,498 to the nearest thousand

Answers

Answer:

73,000

Step-by-step explanation:

if the hundred is smaller than 500, you round down, if it's larger then round up :)

Simplify by using the product, quotient, and power rules

Answers

Answer:

3y^5

Step-by-step explanation:

HELppppppppppppppppp

Answers

9514 1404 393

Answer:

40 -8p -3w$4

Step-by-step explanation:

Ms. Liu will have to pay 8p for p bags of popcorn, and 3w for w bottles of water. The amount she will have left will be these amounts subtracted from $40.

  40 -8p -3w . . . . represents the money remaining

For p=3 and w=4, this evaluates to ...

  40 -8(3) -3(4) = 40 -24 -12 = 4

Ms. Liu will have $4 left after her purchase.

elect the correct answer from each drop-down menu.
Triangle XYZ, with vertices X(-2, 0), Y(-2, -1), and Z(-5, -2), undergoes a transformation to form triangle X′Y′Z′, with vertices X′(4, -2), Y′(4, -3), and Z′(1, -4). The type of transformation that triangle XYZ undergoes is a
.

Triangle X′Y′Z′ then undergoes a transformation to form triangle X′′Y′′Z′′, with vertices X″(4, 2), Y″(4, 3), and Z″(1, 4). The type of transformation that triangle X′Y′Z′ undergoes is a
.

Answers

Answer:

1. Triangle XYZ undergoes a translation.

2. Triangle X'Y'Z' undergoes a reflection across the x-axis

what is 100 divided by 5, (the answer) x 3 (the answer) x 79 (the answer) - 4

NO LINKS PLEASE! First to answer correct gets Branliest!!!

Answers

Answer:

4736

Step-by-step explanation:

1) 100 divided by 5 is 20

2) 20 times 3 is 60

3) 60 times 79 is 4740

4) 4740 subtract from 4 is 4736

5) Answer is 4736

Answer:

4736

Step-by-step explanation:

5*20 = 100

20*3 = 60

60*79 = 4740

4740 - 4 = 4736

the ratio 4:2 is equivalent to 2

Answers

To make pastry for an apple pie, you need 4 oz flour and 2 oz fat. The ratio of flour to fat is

4 : 2 .

But this ratio can be simplified in the same way that two fractions can be simplified. We just

cancel by a common factor. So

4 : 2 = 2 : 1 .

Click on the graph to draw a trapezoid with right angles at (0, -7) and (8,−7), another vertex at (8,0), and a vertical base of 16 units

Answers

Answer: (0, -7) (8, -7) (8, 0) (0, 9) (0, -7)

Step-by-step explanation: It already tells you three of the coordinates. From plotting those, just create a vertical line from (0, -7) up that is equal to 16 and connect that coordinate with (8, 0).

weak spots on a human body

Answers

Answer:

eyes

Step-by-step explanation:

Answer:

the heart the brain the eyes

Step-by-step explanation:

Which best describes the association between variables x and y

Answers

there is no association

how long does it take for 100 hens to lay 100 eggs if 5 hens are known to lay 5 eggs in 5 minutes?​

Answers

Answer:

100 mins/ 1 hour 40 mins

Step-by-step explanation:

if 5 hens are known to lay 5 eggs then each hen lays 1 egg a minute

so multiply 1 by 100

and 100 time 1 equals 100

x / 2.5 = 10
plz helppp

Answers

Answer:

x=25

Step-by-step explanation:

Please help please help please help please help

Answers

For your question you can try option #3

1728829+5363792002×82873992892/12=?​

Answers

Answer:

Simplify the expression.

Exact Form:

111129715061983798933/3

Decimal Form:

3.70432383⋅10^19

Step-by-step explanation:

Answer:

exact form is 111129715061983798933/3

decimal form 3.70432383*10^19

Step-by-step explanation:

Other Questions
anyone can u plz solve this Clay gave four friends seven ball cardseach. How many cards did he give to hisfriends? The temperature of a city steadily drops during the day until it is half of what it was at the beginning of the day. It then decreases by an additional 6.8F after the sun goes down. The temperature at the end of the day is 3.1F.What was the temperature at the beginning of the day?Enter your answer in the box.ASAP PLZZ Select the correct text in the passage.In this expert from guy de Maupassants the necklacewhich group of words helps the reader understand the meaning of the word poverty mutltply 2/3 by 42 and then mutltply that product by 10 HELP NEED ANSWER IN AT LEAST 5 MINUTES will mark brainliest A single cell can be an organism. O True O False Which of the following statements is correct regarding the speed and velocity of an object? A. An objects speed is determined by the distance the object traveled and how long it took the object to travel that distance. B. An objects velocity is determined by the distance the object traveled, how long it took the object to travel that distance and what acceleration the object traveled. C. An objects velocity is determined by the distance the object traveled and how long it took the object to travel that distance. D. An objects speed is determined by the distance the object traveled, how long it took the object to travel that distance and what direction the object traveled. Need help on this question please! What evidence would most weaken the counterclaimpresented here? What do you think of this? PLEASEEEE HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZ why does the reactivity of metals increase from right to left on the periodic table? Find the value of x in the triangle shown below.a)=5b)x=\/7c)x = 7d)x = 25 THIS IS VERY ERGENT PLEASE HELP plzz help me with this question The are of the floor in George's square bedroom is 25ft squared. What is the length of his bedroom?If the height of his bedroom is 6ft, how much wall surface does he have in his room?Please answer I'll mark you as a brainlyest 3x3x-5y-7=0 X=2k-1. Y=k help me solve this PLS God help me pls, free brainiac What is the process by which food is broken down to release energy?