1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
weqwewe [10]
2 years ago
15

Each score in a set of data is multiplied by 3, and then 4 is subtracted from the result. If the original mean is 10 and the ori

ginal standard deviation is 5, what are the new mean and new standard deviation
Mathematics
1 answer:
olganol [36]2 years ago
5 0

The new mean and standard deviation is 26 and 15, when each score in data set is multiplied by 5 and then 7 is added.

According to the question,

Original mean is 10 and original standard deviation is 5 . In order to find to new mean and standard deviation when each score in data set is multiplied by 5 and then 7 is added.

First "change of scale" when every score in a data set is multiplied by a constant, its mean and standard deviation is multiplied by a same constant.

Mean: 10*3 = 30

Standard deviation: 5*3 = 15

Secondly "change of origin" when every score in a data set by a constant, its mean get  added or subtracted by the same constant and standard deviation remains constant.

Applying change of origin in the above mean and standard deviation  

Mean: 30 - 4 = 26

Standard deviation: Remains same = 15

Hence, the new mean and standard deviation is 26 and 15, when each score in data set is multiplied by 5 and then 7 is added.

Learn more about Mean and standard deviation here

brainly.com/question/26841432

#SPJ4

You might be interested in
HELPPP PLS SHOW WORK
expeople1 [14]

Answer:

61

Step-by-step explanation:

1. let the unknown be x

2. using theorem of Pythagoras that states the hypotenuse will be equal to the sum of the other two sides we can determine that 75=14+X

3. this implies that X=75-14

4. therefore X= 61

7 0
2 years ago
which are the roots of the quadratic function f(b) = b2 – 75? check all that apply. b = 5 square root of 3 b = -5 square root of
malfutka [58]
<span>The answers are b = 5 square root of 3; b = -5 square root of 3. f(b) = b^2 – 75. If f(b) = 0, then b^2 – 75 ) 0. b^2 = 75. b = √75. b = √(25 * 3). b = √25 * √3. b = √(5^2) * √3. Since √x is either -x or x, then √25 = √(5^2) is either -5 or 5. Therefore. b = -5√3 or b = 5√3.</span>
8 0
3 years ago
Read 2 more answers
Solve 7 times 7 times 7 times 7​
lukranit [14]

hope it helps you......

8 0
4 years ago
Read 2 more answers
20 mountains and where they are found in the world​
Serga [27]

Answer:

20. Nuptse, Mahalangur Himalaya

It is located in the Mahalangur range in the Khumbu region and is one of the mountains surrounding Mount Everest.

19. Distaghil Sar, Hispar Karakoram

This peak is located in the Karakoram range of the Gilgit-Baltistan region of Pakistan. Dishtaghil Sar is almost three kilometers wide and 7884 meters in height.

18. Himalchuli, Manaslu Himalaya

The Himalchuli peak is a part of Nepal Himalayas and prevails south of Mount Manaslu, one of the world’s highest mountains. Himalchuli has the second-highest summit in its mountain range, i.e., Mansiri Himalaya, at the height of 7892 meters. Hisashi Tanabe of Japan was the first person to have climbed it in 1960.

17. Gasherbrum IV, Baltoro Karakoram

Gasherbrum IV is one of the peaks in the Gasherbrum mountain range, as the name suggests, and is located in Pakistan. It is at the north-east end of the Baltoro Glacier in the Karakoram range of the greater Himalayas. The rest of the three peaks located in the Gasherbrum range are well above 8000 meters, while this peak is about 7932 meters in elevation.

16. Annapurna II, Annapurna Massif

At 7934 m high, Annapurna II lies in the eastern ranges of the Annapurna range, and quite contrary to the common belief in people, it is an independent peak. The first ascent of this peak was made by Richard Grant, Chris Bonington, and Ang Nyima Sherpa in 1960 and has seen very few ascents since.

15. Gyanchung Kang, Mahalangur Himalaya

Gyanchung Kang lies between two of the tallest mountains globally, both of which are above 8000 meters, namely, Cho Oyu and Everest. It is part of Mahalangur Himalaya while it spreads between Nepal and Tibet Autonomous Region of China. It is 7952meters in height.

14. Shishapangma, Jugal Himal

All the mountains listed from here onwards are above an altitude of more than 8000 meters. It is located between Tibet and Nepal. It lies in the restricted area that foreigners are not permitted to visit on security grounds.

Mount Lhotse

13. Gasherbrum II or K4, Baltoro Karakoram

Gasherbrum II lies above Gasherbrum III, and as mentioned above, it is located in the Karakoram range. The 8035-meter peak was first climbed in 1956 by an Austrian climber.

12. Broad Peak or K3, Baltoro Karakoram

The broad peak at 8051 meters is the 12th highest mountain and is also popularly known as Falchan Kangri.

11. Gasherbrum I or Hidden Peak or K5, Baltoro Karakoram

The name was hidden peak due to the extreme remoteness in which it is located. Pete Schoning and Andy Kauffman, who were part of an eight-member American team, were the first to climb this 8080-meter peak in 1956.

10. Annapurna I, Annapurna Massif

The main peak of Annapurna I is the tenth tallest mountain in the world with an altitude of 8091 meters.

9. Nanga Parbat, Nanga Parbat Himalayas

It is also known by the name of “Killer Mountain” because it has one of the highest numbers of deaths and unsuccessful expeditions simultaneously; it has never been climbed during the winter.  Located in the Diamer District of Gilgit-Baltistan, Pakistan, Nanga Parbat is the western anchor of the Himalayas.

8. Manaslu, Manaslu Himal

It lies in the Himalayas’ Gorkha district and is in very close proximity to the Annapurna range. Manaslu stands at 8163 meters.  Located in the Diamer District of Gilgit-Baltistan, Pakistan, Nanga Parbat is the western anchor of the Himalayas.

7. Dhaulagiri I, Dhaulagiri Himal

It is the highest point in the Kali Gandaki river valley. This massif is bounded on the north and southwest by tributaries of the Bheri River and on the southeast by the Myagdi Khola.

6. Cho Oyu, Mahalangur range Himalaya

Cho Oyu is usually considered the easiest of the 8000-meter peaks due to the moderate slopes and passes nearby. Nepal (Province No. 1)–China (Tibet)

5. Makalu, Mahalangur range Himalaya

Despite being part of the Mahalangur range, Makalu is an isolated peak shaped like a four-sided pyramid.  It is located in the Mahalangur Himalayas 19 km southeast of Mount Everest, on the border between Nepal and Tibet Autonomous Region, China.

4. Lhotse, Mahalangur Range Himalaya

Part of the Everest massif, Lhotse is connected to the latter peak via the South Col. Lhotse means "South Peak" in Tibetan

3. Kangchenjunga, Kangchenjunga Himalaya

In a section of the Himalayas called Kangchenjunga Himal delimited in the west by the Tamur River, in the north by the Lhonak Chu and Jongsang La, and in the east by the Teesta River.

2. K2 /Chhogori/Godwin Austen, Baltoro Karakoram

The Baltistan region of Pakistan is home to the highest point in both the Karakoram range and the nation in the form of K2.

1.Sagarmatha /Chomolungma/ Mount Everest /, Mahalangur Range Himalaya

Mount Everest or Sagarmatha, as it is called in Nepal, and Chomolungma is known in Tibet.

Step-by-step explanation:

Hope this helps :)

8 0
3 years ago
There are 45 students who play a woodwind instrument in the school band. Of these, 18 play the saxophone. What percent of these
Mashutka [201]

Answer:

40% students play the saxophone.

Step-by-step explanation:

Given:

Total Number of students who play woodwind instrument = 45

Number of students who play saxophone = 18

We need to find the percent of students who play saxophone.

Solution:

Now we can say that;

To find the percent of students who play saxophone we will divide Number of students who play saxophone by Total Number of students who play woodwind instrument and the multiply by 100.

framing in equation form we get;

percent of students who play saxophone = \frac{18}{45}\times100= 40\%

Hence 40% students play the saxophone.

3 0
3 years ago
Other questions:
  • HELP PLEASE! Can you please explain so I can understand how it was completed?
    7·1 answer
  • The $1,008 paid by the Nobles(problem one) to buy the refrigerator included an interest charge of $135. What was the cash cost o
    15·1 answer
  • write an equation to represent the relationship "a number decreased by negative 2 is equal to 21."Then solve the equqtion
    13·2 answers
  • Scott wants to swim across a river that is 400 meters wide. He begins swimming perpendicular to the shore
    12·1 answer
  • 5. The measures of two sides of a parallelogram are 50 and 80 inches, while one diagonal
    15·1 answer
  • Canada has a population that is about 1/10 as large as the United States. If Canada's population is about 32 million, about how
    12·1 answer
  • write down the first 3 term of each sequence described by the sequence with first term 8 and difference -7​
    12·1 answer
  • Find all real square roots of -36
    14·2 answers
  • Fill in the green box.<br> Z<br> 4<br> x = [?] √?<br> Enter
    8·1 answer
  • Helpp i dont want to fail math
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!