if a set of data has 81 values with a variance of 4.4 then the standard deviation is

Answers

Answer 1

Data:

variance: 4.4

The standar deviation is defined in relation to the variance as the square root of the variance, so:

\(\sigma=\sqrt[]{\sigma^2}\)

Where:

σ is standar deviation

σ^2 is the variance

So in this case the standar deviation will be:

\(\sigma=\sqrt[]{4.4}\)\(\sigma=2.2097\)


Related Questions

place the steps to sketch the graph of a rational function in the appropriate order

Answers

The steps to sketch the graph of a rational function in the appropriate order is in the order: 1,4,2,3

The steps to sketch the graph of a rational function will be first to find the function's zeros and vertical asymptotes, and plot them on a number line, the second step is to choose test numbers to t the left and right of each of these places, and find the value of the function at each test number., the third step is to use test numbers to find where the function is a positive and where it is negative and the last step is to sketch the function's graph, plotting additional points as guides as negative.

To know more rational functions refer to the  link  https://brainly.com/question/27914791?referrer=searchResults.

#SPJ4

Place the steps to sketch the graph of a rational function in the appropriate order.

1)find the function's zeros and vertical asymptotes, and plot them on a number line.

2) use test numbers to find where the function is positive and where it is negative.

3) sketch the function's graph, plotting additional points as guides as negative.

4)choose test numbers to t the left and right of each of these places, and find the value of the function at each test number.​

Will give brainiest and extra points if the answer is correct

Will give brainiest and extra points if the answer is correct

Answers

Answer:

The range in the average rate of change in temperature of the substance is from a low temperature of \(-22^{\circ}\) to a high of \(16^{\circ}\).

Step-by-step explanation:

In the sinusoidal function \(y=a\sin(b(x-c))+d\), \(|a|\) represents the amplitude and \(y=d\) represents the equation of the midline.

By definition sinusoidal functions ebb and flow with respect to this midline. Therefore, the minimums must occur at \(y=d-|a|\) and the maximums must occur at \(y=d+|a|\).

Thus, the minimum, or low, occurs at \(y=-3-|-19|=-3-19=\boxed{-22}\) and the maximum, or high, occurs at \(y=-3+|-19|=-3+19=\boxed{16}\).

5. The temperature at 3:00 p.m. was 7°F. By 9:00 p.m. the temperature had dropped by 12 degrees. What was the temperature at 9:00 p.m.?
A. 5°F
B. 19°F
C. -19°F
D. -5°F​

Answers

Answer = D -5*F
nnnnnnn

Find the polar coordinates of rectangular coordinates (-√2,1). Limit θ to the interval [0,2pi) and round 2 dceimal places if needed

Answers

The point (-√2,1) can also be represented as (√3, 5.18) in polar coordinates.

To find the polar coordinates of the rectangular coordinates (-√2,1), we can use the following formulas:

r = √(x² + y²)

θ = tan^⁻1(y/x)

Plugging in the given values of (-√2,1), we get:

r = √((-√2)² + 1²) = √(2 + 1) = √3

θ = tan^⁻1(1/(-√2)) ≈ 2.0344 radians

Note that since the point (-√2,1) is in the second quadrant, we need to add π to the value of θ obtained from the inverse tangent in order to obtain an angle in the interval [0,2π). Thus, we have:

θ ≈ 2.0344 + π ≈ 5.1779 radians

Rounding to 2 decimal places as needed, we get the polar coordinates of (-√2,1) as (r,θ) ≈ (√3, 5.18).

For such more questions on coordinate

https://brainly.com/question/29660530

#SPJ8

May I please get help with this. It’s seem though I can’t get the right answers for each of the figures

May I please get help with this. Its seem though I cant get the right answers for each of the figures

Answers

Congruent figures have the same shaps and same sizes

Similar figures have the same shapes but different sizes

From the given picture

The two circles have equal diameters (2 small squares), then

The two circles are congruent, then

The answer is Yes for congruent, No for similar

The second figure has a square and a rectangle

They are different in shapes and sizes, then

The two shapes are not congruent or similar

The answer is NO for congruent, No for similar

The 3rd figure has 2 T shapes equal in size, then

The two shapes are congruent

The answer is Yes for congruent, No for similar

The 4th figure has two right triangles but different in sizes

The small triangle is 1/3 the big triangle, then

The two triangles are similar

The answer is Yes for similar, No for congruent

A manufacturer of athletic footwear finds that the sales of a popular brand of running shoes is a function of the selling price (in dollars) for a pair of shoes. Suppose that pairs of shoes and pairs of shoes per dollar. The revenue that the manufacturer will receive for selling pairs of shoes at dollars per pair is Find What impact would a small increase in price have on the manufacturer's revenue

Answers

Answer:

Hello your question is poorly written attached below is the complete question

Answer :

a) R'( 120 ) = 3000

b)  Increase the manufacturers revenue

Step-by-step explanation:

Given data:

F (120) = 9000 pairs

F' (120) = -50 pairs of shoes

R(p) = P * F(p)

a) find R' ( p )

R'(p) = P * F'(p)  + F(p) * 1

∴ R' ( 120 ) =  120 * ( -50 ) +  9000 * 1

                  = 3000

b) A small Increase in price by $3000 will Increase the manufacturers revenue

A manufacturer of athletic footwear finds that the sales of a popular brand of running shoes is a function

-b-
Note: Figure is not drawn to scale.
If a = 5m, b = 8 m, c = 8 m, and d = 2 m, what is the perimeter of the swimming pool?
OA.
21 m
OB.
32 m
29 m
34 m
OC.
OD.
6 of 10 Answered
Reset
Submit
Session Timer: 78:05
O Search
C

Answers

After considering the given data we conclude that the perimeter of the given swimming pool is 23 meters which is Option A.

The perimeter of a rectangle is evaluated by adding up all its sides. For the given case, we possess a rectangle with sides
a = 5m,
b = 8m,
c = 8m and
d = 2m.
Perimeter regarding the swimming pool is evaluated as
a + b + c + d
= 5m + 8m + 8m + 2m
= 23 meters
Hence the option regarding the question which satisfy the perimeter is Option A.
Perimeter the counted  measurement regarding the distance around the outside of a two-dimensional shape. In this system  the length of the outline or boundary of any two-dimensional geometric shape is defined as perimeter .
To learn more about perimeter
https://brainly.com/question/19819849
#SPJ1
The complete question is
If a = 5m, b = 8 m, c = 8 m, and d = 2 m, what is the perimeter of the swimming pool?
A.23 m
B. 32 m
C.29 m
D.34 m

Find the sum of the first 8 terms of the fallowing sequence?

3,15,75,375 …

Answers

Answer:

\( \frac{3( {5}^{8} - 1) }{5 - 1} = 292968\)

If students recieve a whole numberof pointson every exam item. Can the exam be worth 80 points

Answers

Each response includes a thorough explanation of how it was arrived at. The student seemed to have been unsure of which approach to utilize so they hedged their chances by trying both in the hopes that one of them would work. (I don't think it was rewriting that they forgot to cross out; the student presented their response as "it is either X or Y," then in subsequent questions supplied parallel replies depending on whether X or Y was accurate.)

How can I give this question a grade?

Full points given that they provided the correct response

partial marks for being "half-right"?

Or perhaps they didn't get any points since they didn't fully comprehend the issue?

To know more about points refer to https://brainly.com/question/17273444

#SPJ1

A
-6
Find the distance, d, of AB.
A = (-5, 5) B = (5, -5)
-4 -2
f
&
-2
-4
9
N
4
B
d = √|×₂ − ×₁1² + y2 - Y₁|²
d = [?]
Round to the nearest tenth.
Distance
Enter

Answers

Answer:

88

Step-by-step explanation:

Find subject and predicate 1. Down went the Cumberland

Answers

Subject: The Cumberland
Predicate: Went down
Subject: the Cumberland
Predicate: went down

During the summer, Cecile read twice as many books as Kami. Laura read three times as
many books as Kami. Gigi read the same number of books as Cecile, Laura, and Kami
combined. Gigi read 30 books. Write and solve an equation to find the number of books
each girl read.

Answers

Answer:

The equation

c x 2 > k

l x 3 ?> c > k

g = 30 = c + l + k

this equation is the same as...

Cecile read twice as many books as Kami.

Laura read 3 times as many books as Kami, but possibly less than Cecile.

Gigi read 30 books. 30 books is the same as all 3 girls combined.

To find out how many books each girl read, you need to find 3 unequal numbers that add up to 30. These numbers are substituted, only because they can be anything at all, and I want to prevent confusions.

hope this helps!

help


Applying the Solution to a 3X3 System


At a family reunion, there only blood relatives, consisting of children, parents, and grandparents, in attendance. There were 400 people total. There were twice as many parents as grandparents, and 50 more children than parents. How many children, parents, and Grandparents were in attendance?

Show up all steps please

Answers

The total number of people in attendance was 400 people in total.

How to the total  total number of people in attendance

Let:

x be the no of grandparents

y be the no of parents

z be the no of children

Since there are 400 people total, so we can write the equation:

x + y + z = 400

We also know that there were twice as many parents as grandparents, so we can write the equation:

y = 2x

We know that there were 50 more children than parents, so we can write the equation:

z = y + 50

Now we have a system of three equations with three variables:

x + y + z = 400

y = 2x

z = y + 50

We can solve this system using substitution method

First, we can use the second equation to express y in terms of x:

y = 2x

Next, we can use the third equation to express z in terms of x:

z = y + 50

z = 2x + 50

Now we can substitute these expressions for y and z into the first equation:

x + y + z = 400

x + (2x) + (2x + 50) = 400

5x + 50 = 400

5x = 350

x = 70

So there were 70 grandparents in attendance.

Using the second equation, we can find the number of parents:

y = 2x

y = 2(70)

y = 140

So there were 140 parents in attendance.

Using the third equation, we can find the number of children:

z = y + 50

z = 140 + 50

z = 190

So there were 190 children in attendance.

Therefore, the total number of people in attendance was:

70 grandparents + 140 parents + 190 children = 400 people in total.

Learn more about equation at https://brainly.com/question/18831322

#SPJ1

10z^2 -2z-2 10z 2 −2z−2

Answers

just drop out. i’m sorry they are teaching you this

z =(2-√-116)/-20=1/-10+i/10√ 29 = -0.1000-0.5385i

z =(2+√-116)/-20=1/-10-i/10√ 29 = -0.1000+0.5385i

Step-by-step explanation:

Part A

In the story "Life on the Sea," how does the captain mostly feel when he is on the sea?
Responses

miserable
miserable

proud
proud

guilty
guilty

confident
confident
Question 2
Part B

Which excerpts from the story best support the answer in Part A?

Select the two correct answers.
Responses

"He gave his job two weeks’ notice and was back on the sea right away."

"The calmness that he felt when the water was placid wasn’t like any stillness that he experienced on land."

"He had spent most of his life on the sea; he knew the habits and nuances of the water like it was his closest friend."

"The storm roiled on the horizon as rough waves rocked the helm of the boat."
"

Answers

Confident, In contrast to any stillness he had ever felt on land, he felt a sense of calm when the water was calm. and "He gave two weeks' notice at his job and immediately sailed off again."

What is a fishing vessel?

fishing vessel Place on list Share. fishing boat definitions. a fishing vessel with a well for preserving the catch. A boat and a fishing smack are potential candidates. both sorts of draggers and trawlers. Fishing ships or boats are used to remove aquatic creatures from bodies of water.

A trawl is a type of fishing net that is currently dragged along or through the ocean floor at specific depths. Since trawlers are frequently bigger than fishing boats and struggle to maneuver when necessary, they are given special qualities in ror.

Thus, options A and A, B are correct.

To know more about fishing vessel, visit:

https://brainly.com/question/26399526

#SPJ1

Answer:

Part a: confident

Part b: "The calmness that he felt when the water was placid wasn’t like any stillness that he experienced on land." and "He had spent most of his life on the sea; he knew the habits and nuances of the water like it was his closest friend."

Step-by-step explanation: I took the test :)

Part AIn the story "Life on the Sea," how does the captain mostly feel when he is on the sea?ResponsesmiserablemiserableproudproudguiltyguiltyconfidentconfidentQuestion
Part AIn the story "Life on the Sea," how does the captain mostly feel when he is on the sea?ResponsesmiserablemiserableproudproudguiltyguiltyconfidentconfidentQuestion

Find the distance between the two points (5, -4) and (3 , 6). Give an exact answer in terms of a square root.

Answers

Answer:

√104.

Step-by-step explanation:

To find the distance between two points (x1, y1) and (x2, y2) in a coordinate plane, we can use the distance formula:

d = √((x2 - x1)² + (y2 - y1)²)

So, for the given points (5, -4) and (3, 6), the distance is:

d = √((3 - 5)² + (6 - (-4))²)

d = √((-2)² + (10)²)

d = √(4 + 100)

d = √104

Therefore, the distance between the two points (5, -4) and (3, 6) is √104.

A novelist can write 2and 1 fourth pages in 3 fourths hour. How many pages can she write per hour?

Answers

Answer:

The novelist can write 3 pages per hour

Step-by-step explanation:

Unit rate is the work done per unit time.

Given

Number of pages = p = \(2\frac{1}{4} = \frac{9}{4}\) pages

Time =t = \(\frac{3}{4}\) hours

In order to find the number of pages per hour, we have to divide the number of pages by hours.

So,

\(Pager\ per\ hour = \frac{\frac{9}{4}}{\frac{3}{4}}\\Using\ \frac{\frac{a}{b}}{\frac{c}{d}} = \frac{a}{b} * \frac{d}{c}\\pages\ per\ hour = \frac{9}{4} * \frac{4}{3}\\= 3\ pager\ per\ hour\)

Hence,

The novelist can write 3 pages per hour

simplifly the expression
5^-4x5^2​

Answers

Answer:

5^-2

Step-by-step explanation:

When you multiply exponents, you can add them if they have like bases.

-4 + 2 = -2

Answer:

It would be x over 25

HELP ME PLS (Solve 6!)​

HELP ME PLS (Solve 6!)

Answers

Answer:

720

Step-by-step explanation:

This means 6x5x4x3x2x1

Drag each number to a box to complete the table. Each number may be used once or not at all

Answers

Each number should be dragged to a box to complete the table as follows;

Kilometers     Meters

1                        1,000

2                       2,000

3                       3,000

5                       5,000

8                       8,000

What is a conversion factor?

In Science and Mathematics, a conversion factor can be defined as a number that is used to convert a number in one set of units to another, either by dividing or multiplying.

Generally speaking, there are one (1) kilometer in one thousand (1,000) meters. This ultimately implies that, a proportion or ratio for the conversion of kilometer to meters would be written as follows;

Conversion:

1 kilometer = 1,000 meters

2 kilometer = 2,000 meters

3 kilometer = 3,000 meters

4 kilometer = 4,000 meters

5 kilometer = 5,000 meters

6 kilometer = 6,000 meters

7 kilometer = 7,000 meters

8 kilometer = 8,000 meters

Read more on conversion factor here: brainly.com/question/28308386

#SPJ1

Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Drag each number to a box to complete the table. Each number may be used once or not at all

Two added to the square root of the sum of a number and five is equal to seven. Find the number.

Answers

Answer:

Step-by-step explanation:

Two added to the square root of the sum of a number and five is equal to seven. Find the number.

PLS HELP ASAP!tysm if u help me!<3

PLS HELP ASAP!tysm if u help me!&lt;3

Answers

Answer:

Step-by-step explanation:

It is a matter of just substituting the values into the given equation.

4m^2-2n+5

If m=5 and n=9 then it becomes

4(5^2)-2(9)+5

4(25)-18+5

100-18+5

87

What is nine times nine​

Answers

Answer: 81

Step-by-step explanation: 9x9= 81 you can always double check your work with a calculator also.

Answer: 9x9=81
This is also the same as asking the square of 9.


Question 2
Only students who receive financial aid from the college/university they attend is entitled to take a tax credit.
True
False

Answers

I believe the answer is false.

But, I’m not sure. Sorry¯\_(ツ)_/¯

Part A: Elijah has 1/2 bag of candy. A bag of candy weighs 5 pounds. How many pounds of candy does Elijah have?

Part B: Elijah has 2 1/2 bags of candy. A bag of candy weighs 5 pounds. How many pounds of candy does Elijah have?

Answers

Answer:

A. 2.5 pounds

B. 12.5 pounds

Step-by-step explanation:

Answer:

a 2.5 b 12.5

Step-by-step explanation:

valor de la pendiente y de la ordenada al origen de y = −2x − 1

Answers

Answer:

pendiente = -2, y intersection = -1

Step-by-step explanation:

la pendiente es -2 y origen de la y es -1.

Kenneth is making a cake for the first time. His recipe calls for 280 grams of sugar, but he accidentally pours 295 grams on his first try. He uses a small spoon to remove the extra suger. If he needs to remove 12 spoonfuls, how many milligrams of sugar does his spoon hold?​

Answers

The spoon holds 1250 milligrams of sugar if Kenneth needs to remove 12 spoonfuls.

We are given;

Kenneth is making a cake for the first time.

His recipe calls for 280 grams of sugar, but he accidentally pours 295 grams on his first try.

He uses a small spoon to remove the extra sugar.

He needs to remove 12 spoonfuls.

We need to find the quantity of sugar his spoon hold.

First, let us find the extra amount of sugar;

Extra sugar = 295 - 280 = 15 grams.

We will find each spoon by using the unitary method;

Since 12 spoonfuls hold 15 grams.

So, 1 spoonful holds 15 / 12 grams = 1.25 grams = 1250 milligrams.

So, 1 spoonful holds 1250 milligrams of sugar.

Thus, the spoon holds 1250 milligrams of sugar if Kenneth needs to remove 12 spoonfuls.

To learn more about unitary method visit:

https://brainly.com/question/23423168

#SPJ9

A bag of 10 Marbles has the following composition:

Red – 3

Green – 4

Blue – 2

Yellow – 1

What is the Simple Probability of reaching in and extracting a Yellow marble?

Answers

Answer: So, the simple probability of reaching in and extracting a yellow marble from the bag is 0.1 or 10%.

Step-by-step explanation: To calculate the simple probability of reaching in and extracting a yellow marble from the bag, we need to divide the number of yellow marbles by the total number of marbles in the bag.

The bag contains a total of 10 marbles, and there is only 1 yellow marble. Therefore, the probability of extracting a yellow marble can be calculated as:

Probability = Number of Yellow Marbles / Total Number of Marbles

Probability = 1 / 10

Simplifying this fraction gives us:

Probability = 0.1 or 10%

Hope this helps!

PLEASE HELP ME I NEED HELP ASAP

PLEASE HELP ME I NEED HELP ASAP

Answers

Answer:

Option 4

Step-by-step explanation:

Answer:

Option 4

Step-by-step explanation:

When you have an equation like that that you have to graph, thing of 1/4 as rise/run. The nominator (1) will be moving up and down, and the denominator will be going side to side. So for this question, since the y-intercept is 0 (since there is no B), we start at zero. Then we go up 1, and to the right 4, since this equation is positive. If 4 is negative, then you would be going to the left 4.


Please help I was sick and missed out on class.Thank you

Please help I was sick and missed out on class.Thank you

Answers

Answer:

Y= -1.67x + 0.67

Step-by-step explanation:

Hope this was ok

Other Questions
PLEASEEE HELP ME WHAT IS THE ANSWER!! Find the mean absolute deviation of each data set. Round each answer to two decimal places.10,10,15,15,16,18,23 when congress sent andrew johnson the civil rights bill of 1866, he:group of answer choicessuggested that it did not go far enough to secure racial equality.won widespread public approval for his response.argued that it discriminated against whites.contended that it gave too much authority to the states.signed it, creating an irreparable breach between himself and the republicans. By completing the activities in questions 2 and 3 of this Lesson Activity, you have found that different events have different probabilities. For the charitable casino night you are planning, would it be better to assign more points to the events with high probabilities of payout? Why or why not? The speed of an object can be found by taking the distance it travels and dividing it by the time it takes to travel that distance. An object travels 100 feet in 2.5 seconds. Let the speed, S, be measured in feet per second. Write an equation to represent the relationship between the three quantities (speed, distance, and time). The use of transparency and resiliency in hardware, software processes, and software systems is essential to the development of dependable systems.TrueFalse in an alphabetic filing system, identical names for people and businesses are first sorted by city names. testing of a switch is being discussed. technician a says a switch can be tested with a voltmeter. technician b says to use a fused jumper wire to see if the switch is operating. who is correct? ______is the belief or practice that all men are created equal.A. Socialism B. CommunismC. Democracy i am s9147545 i have another account so you guys can have 80 points A eat sixth of pizza in 2 minutes.B takes 3 minutes to eat one quarter of same same pizza.If A and B starts eating one pizza each,who will finnish first? Can someone please help me Answer the following questions in Spanish with complete sentences.1. Qu jugabas de nio/a?2. Jugaste algo este fin de semana? Qu jugaste?3. Si no, Cundo fue la ltima vez que jugaste algo? Qu jugaste? human herpesvirus 4 (EBV) has been implicated as an etiological agent in some cases of Hodgkin's lymphoma. True False. a mass of 1.141 grams of an unknown acid were titrated to completion by 61.49 ml of 0.1280-m naoh. what is the molar mass of the acid? Triangle MNO is an equilateral triangle with sidesmeasuring 16/3 units.What is the height of the triangle? Select two early civilizations discussed in this lesson and write two complete paragraphs explaining the similarities and differences between them. Your first paragraph should focus on the similarities the two civilizations share. Your second paragraph should explain the differences between the two civilizations. Each paragraph should also contain at least three sentences of supporting details. (I really need someone to do this because I don't understand the assignment, thank you Max, a single taxpayer, has a $270,000 loss from his sole proprietorship in 2021. How much of this loss is not deductible after considering the excess business loss rules Christian humanists contributed to the reformation because they. Could someone, please help me?After her children were grown Stanton wrote and lectured on all aspects of women's rights and on many other current topics as well. She began to travel the county, and her talks on women's issues were popular and well received. She also co-authored the three-volume of History of Woman Suffrage, before publishing her autobiography and the controversial Woman's Bible. Though ill health prevented her from traveling much in later life, she continued to write on women's rights until her death in 1902."Elizabeth Cady Stanton's Life in Seneca Falls"National Park ServiceRead this passage. Paraphrase the central idea Draw your own Punnett square using the following data.he mother has long fur:(F)F = long furChe father does not have long fur: (ff)f = short fur