Mathematics High School

Que es la desviación estándar?

Answers

Answer 1
La desviación estándar es un índice numérico de la dispersión de un conjunto de datos (o población). Mientras mayor es la desviación estándar, mayor es la dispersión de la población. La desviación estándar es un promedio de las desviaciones individuales de cada observación con respecto a la media de una distribución.

Related Questions

A hiker has 2 pairs of hiking shoes, 3 shirts, and 5 pairs of shorts to choose from. How does the number of combinations of shoes, shirts, and shorts change as the
hiker adds a new pair of shorts to his collection? Explain.
If the hiker adds
new pair of shorts to his collection, the new number of combinations is
which is
than
The original number of combinations is
the original number of combinations.
(Type whole numbers.)

Answers

Answer: 12

Step-by-step explanation:

There are 12 different combinations

If you base it off of the 2 pairs of shoes, each one goes over each shirt twice, and each pair of shorts will go over once

A town has a population of 2000 and grows at 4% every year. What will be the
population after 15 years, to the nearest whole number?

Answers

Answer:

[tex] \frac{4}{?100} \times \frac{2000}{?1} = 80 \\ \\ 2000 + 80 = 2080 \\ \\ 2080 \times 15 = 31200 [/tex]

In Earth’s atmosphere, the speed of sound can be approximated using partial variation. The speed of sound is approximately 331 m/s at 0°C and approximately 343 m/s at 20°C.
Jenny yells out “Hello” in a canyon when the air
temperature is 10°C. It takes 1.4 s to hear her
echo. How far away is the wall of the canyon?

Answers

Given the info, we can do 343-331=12 and 20-0=20. Then divide both by 2 to get a ratio of 6:10. This indicates that if temperature is 10, speed will be 6 m/s. I order to get the distance, multiply 6 m/s by 1.4 s, the unit s (second) cancels out and the answer is 8.4 m.

broccoil cost 3.14$ a pound at the market if mary bought 2.5 pounds what was the cost

Answers

7.85 dollars because 3.14 is the price of one pound your buying 2.5 so you times 3.14 by 2.5

Taylor collected 4 white shells and 9 grey shells. If she put all the shells in a bucket and randomly pulled one out, what is the probability that the shell would be white?

Answers

Answer:

4/13

Step-by-step explanation:

Add the number of eggs which is 13 so it shows that 13 eggs are in the bag and there are 4 white eggs so the probability of taking a white egg is 4/13

find the area and circumference of each figure below. use 3.14 for pi. if needed, round your answer's to the nearest 100ths place.​

Answers

Answer:

[tex]a \\ area = 10 \times 10 \times 3.14 = 314 \\ circumference = 2 \times 10 \times 3.14 = 62.8 \\ \\ b \\ \: area = 6 \times 6 \times 3.14 = 113.04\\ circumference = 2 \times \times 6 \times 3.14 = 37.68[/tex]

1 Pound = 16 ounces
2 Pounds 6 Ounces = blank ounces

Answers

[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}[/tex]

38 ounces.

Thanks.Hope it helps.

Answer:

32 ounces........

..

Step-by-step explanation:

.................

Someone help me out on this one please

Answers

Angle H and angle K :)

Answer:

Angle GHM and Angle LKJ

Step-by-step explanation:

They are both marked the same with one line.

Who are some good you tubers to watch?

Answers

Answer:

Cocomelon

Their videos are pretty good!

You randomly draw a marble from a bag, record is color, and then replace it. You draw a blue marble 11 out of 50 times. What is the experimental probability that the nes marble will be blue? Write your answer as a fraction, de mal, or percent. The experimental probabilty that the next marble will be blue is​

Answers

Answer:  11/50

Explanation:

This may seem like a trick question, but it's not. Your teacher simply wants to know how many times you got blue out of the number of times total. The numerator is the number of blue. The denominator is the number of total tries.  The fraction 11/50 cannot be reduced because 11 and 50 share no common factors other than 1.

Notes:

11/50 = 0.22 = 22%The answer above applies to experimental probability only. The theoretical probability is likely different. We don't have enough info to compute the theoretical probability.

Please help me choose the right answer

Answers

package 1 because 100cm is in 1m and there is 2 in package 2

What is the solution to the equation? a+5 2/3=9​

1. a+5 2/3=9
a+5 2/3+5 2/3=9-5 2/3
a=3 1/3

2. a+5 2/3=9
a+5 2/3+5 2/3+=9+5 2/3
a=14 2/3

3. a+5 2/3=9
a+5 2/3-5 2/3=9+5 2/3
a=14 2/3

4. a+5 2/3=9
a+5 2/3-5 2/3=9-5 2/3
a=3 1/3

Answers

1-a=31/3
Step-by-step
a+52/3=9
a+17/3-17/3=9-17/3
a=10/3=3 1/3
Hope this help☺️

Answer: 1-a=31/3

Step-by-step

Step-by-step explanation:

I asked my math teacher, we did the problem together, and I belive this other guy is also right.

A coach purchases 47 hats for his players and their families at a total cost of $302. The cost of a small hat is $5.50. A medium hat costs $6.00. A large hat costs $7.00. He purchases three times as many medium hats as small hats. Using matrices, how many large hats did the coach purchase?

Answers

Answer:

The answer is below

Step-by-step explanation:

Let x represent the number of small hat purchased, y represent the number of medium hat purchased and z represent the number of large hat purchased.

Since a total of 47 hats where purchased,  hence:

x + y + z = 47    (1)

Also, he spent a total of $302, hence:

5.5x + 6y + 7z = 302     (2)

He purchases three times as many medium hats as small hats, hence:

y = 3x

-x + 3y = 0    (3)

Represent equations 1, 2 and 3 in matrix form gives:

[tex]\left[\begin{array}{ccc}1&1&1\\5.5&6&7\\-3&1&0\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}47\\302\\0\end{array}\right] \\\\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}1&1&1\\5.5&6&7\\-3&1&0\end{array}\right] ^{-1} \left[\begin{array}{c}47\\302\\0\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}6\\18\\23\end{array}\right][/tex]

Therefore he purchases 6 small hats, 18 medium hats and 23 large hats

Answer:

Let x represent the number of small hat purchased, y represent the number of medium hat purchased and z represent the number of large hat purchased.

Since a total of 47 hats where purchased,  hence:

x + y + z = 47    (1)

Also, he spent a total of $302, hence:

5.5x + 6y + 7z = 302     (2)

He purchases three times as many medium hats as small hats, hence:

y = 3x

-x + 3y = 0    (3)

Therefore he purchases 6 small hats, 18 medium hats and 23 large hats

HELLLPPPPPPPPP PLEASEEEEEEE PLEASEEEE SOMEONE HELPPPPP

Answers

A) x = 15

steps:

90 = 5x + 15

-15 -15

75 = 5x

÷5 ÷5

15 = x

explanation:

< P is 90°

so you have the equation of < P equal 90 to find the x

B) < RQP = 33

steps:

2x + 3

2(15) + 3

30 + 3

33

explanation:

now that you know what x equals you just plug in 15 for the x and solve

Evaluate the following expression when x=-5 and y=7: *enter numbers only

Answers

Answer

x+y

Step-by-step explanation:

5) A bag contains eight red
marbles and six blue
marbles. You randomly pick
a marble and return it to the
bag before picking another
marble. What is the
probabilty that the first
marble you picked was blue
and the second marble was
red? Record your answer as
a decimal to the
thousandths place (three
places past the decimal).

Answers

Answer:

P(B,R) = 24.490%

Step-by-step explanation:

P(B,R) = 6/14 x 8/14 which can be simplified to become 12/49 or 24.490%

help me pls! i'll mark u brainliest promised

Answers

Answer:

DF≅YZ

angle R≅angle N

XW≅TH

angle M ≅angle C

new coordinate=(2,1)

new coordinate=(0,2)

Reflection:

new coordinate=(5,-6)

new coordinate=(1,4)

Last one is already done

Step-by-step explanation:

Adam has an inflatable pool toy

Answers

Answer:

yes

Step-by-step explanation:

Answer:

nice.

Step-by-step explanation:

₊˚ ꒰ mei ꒱ ‧₊˚

Please help will mark brainliest

Answers

Answer:

The answer is 36.9

Step-by-step explanation:

A zip line starts on a platform that is 40 meters above the ground. The anchor for the zip line is 198 horizontal meters from the base of the platform. How long is the zip line? help grifjin

Answers

Answer:

Solution given:

perpendicular distance =height [p]=40m

base or horizontal distance [b]=198m

Hypotenuse or zip line [h]=?

Now

By using Pythagoras law

h²=p²+b²

h²=40²+198²

h=√40804

h=202m

So the Zip line is 202m long.

An ice cream shop offers 6 different flavors of ice cream and 11
different toppings. How many choices are possible for a single
serving of ice cream with one topping?

Answers

Answer:

66

Step-by-step explanation:

Since these two events are independent, multiply the two probabilities together:

6*11 = 66 (choices)

square & cube numbers puzzle
| Using only square and cube numbers less than or equal to 100, can you fill in the circles to make these
| sums true? You can only use each number once and you must use all the numbers.
36) + (64

Square and cube numbers

Answers

Answer:

who friendhjcicivigigivigigogogig'g

A clothing store advertises that its prices are only 10% above cost. What is the store's profit on a coat that is advertised for $160?

Answers

Answer: $16

Explanation: 10% of $160 is $16

Find the area of the trapezoid

Answers

Answer:

45

Step-by-step explanation:

Solve by completing the square.
x2 + 12x + 8 = 0

Answers

X= -4/7 please help me out now and answer number 10 on my questions

Help me with this please!!!!!

Answers

Answer:

d = √(x2 - x2)^2 + (y2 - y1)^2 + (z2 - z1)^2

P1(0, 0, 0) P2(-9, 6, -4)

Substitute the values in the above equation and you will get

d = √(-9)^2 + (6)^2 + (-4)^2

= √(81 + 36 + 16)

= √133

= 11.53

Answer:

The answer is 11.53

helpppp pleaseee
NO LINK

Answers

Answer:

The graph increases

Step-by-step explanation:

help me please!!! asap!​

Answers

C should be the answer

Answer: C

Explanation: 3(2) = 6

i need an answer...............................

Answers

Answer:

8 i think

Step-by-step explanation:

HELP ME HELP ME HELP KE HELP ME PLEASEEEEEE I NEED HELP PLZ PLZ PLZ

Answers

Answer:

1/3

Step-by-step explanation:

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Customer relationship management is used for all of the following EXECPTCan anyone help me with this question? Please and thank you.A. to target highly valued customers.B. to identify all customers who shop with the company.C. to develop strong customer relationships.D. to create offers tailored to specific customers. Using the allele symbols in the table, identify the genotype of a guinea pig that is recessive for hair length, heterozygous for hair color, and homzygous dominant for hair texture. a visual display of topic is called? Part BHow does the section "Supply-Side Strategies for WaterSuppliers" contribute to the structure and organizationidentified in Part A?It explains how accounting for water and water losscontrol are methods to achieve sustainability,It debates whether water loss control or accountingfor water is more effective to achieve efficiencyIt describes how and when water meters were firstused to measure water usageIt provides detailed instructions for using a watermeter and locating where leaks are most likely tooccur An incline plane is 12-m long and 4-m high. A block is pulled up the ramp with a spring scale. The reading on the spring scale is 70-N. How many Newtons would the block actually weigh if you had to lift it the 4-m height? complete this(will give brainlyist) A pack of 4 chocolate bars costs 1.20What is the price per unit?what is it? How did the internet play in the role of spreading globalization across the world? What was a result of the shipping boycott led by Doa Gracia?1. The pope excepted Judaism2. The pope let the conversos go.3. European nations paid their debts.4. European nations allied with the Ottomans. 100 POINTS PLEASE HELP In your opinion, how essential to the success of a country is the right and ability of its citizens to prompt change? Answer with at least one specific reason why. A country that is on the gold standard has a currency that:A. takes the form of gold coins rather than paper bills.B. replaces gold as the country's reserve currency.C. has an exchange rate based on the price of gold.D. can be traded for a set amount of gold at any time. Which formula represents an isomer of this compound? If f(x)= 1/x+2 and a>3, which of the following could be f(a) A =1/2B = 1/3C = 1/4D = 1/6 Simplify: 8 + 14 5 - 7 + 3 - 7 - 4 5.2 times 9.3 times what equals 120.9 ? B. Direction: In each of the following situations, identify the method of heat transfer that takes place(conduction, convection, or radiation).1. Hot milk is stirred with a spoon, later the spoon gets hot2. The air near the ceiling of a closed room is warmer, because the warm air rises.3. You are doing artwork at your table near a lamp, you start to feel hotter.4. During nighttime, the cool air from the land moves toward the sea to replace the rising warm air.5. In a pool, the water near the surface is slightly warmer.6. The washed clothes under the sun dries up.7. The scouts stand near a bonfire during their camping-8. Fish is cooked over a hot pan.9. Iron nail being heated in a candle.10. A boy playing outside starts to feel hotter. pls help. quickly please please find the value of X for number 4 5 and 6 thank you :) Rewrite the parts of the sentence below in the correct order- add capital letters as needed: You have just gotten your first job. You have decided you want to take your parents out for dinner to celebrate and you have anticipated it will cost approximately $120 for the three of you to go out for dinner. At your job, you make an hourly wage of $11. How many hours would you need to work to pay for the dinner? What if you wanted to add a 15% tip? Could your strategy also allow you to find out how much money you made for any number of hours?