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
TiliK225 [7]
3 years ago
15

Find the standard deviation of the following R.V. Show all work...no calculator shortcuts...but then check with 1-var stats.

Advanced Placement (AP)
1 answer:
maxonik [38]3 years ago
8 0

Answer:

7.6997

Explanation:

Given :

X : ____7 ____ 15 ____ 28

P(X) __0.2 ___0.49 ____?

ΣP(x) = 1

0.2 + 0.49 + a = 1

a = 1 - 0.69

a = 0.31

Standard deviation = sqrt(Variance(x))

Variance = Var(X) = Σx²p(x) - E(x)²

E(x) = Σx*p(x) = (7*0.2) + (15*0.49) + (28*0.31) =

E(x) = 17.43

Σx²p(x) = (7^2 * 0.2) + (15^2 * 0.49) + (28^2 * 0.31) = 363.09

Var(X) = Σx²p(x) - E(x)²

Var(X) = 363.09 - 17.43^2

Var(X) = 363.09 - 303.8049

Var(X) = 59.2851

Standard deviation = sqrt(59.2851)

Standard deviation = 7.6996818

= 7.6997

You might be interested in
Which of the following could be synonym for the world externality
mina [271]
Synonyms for the word externality could be: face, area, level, side, skin, top, etc.
7 0
3 years ago
Read 2 more answers
Describe the trend in judicial independence in the United Kingdom between 1990 and 2019. Explain a possible reason for this tren
WINSTONCH [101]

Answer:

The main factors aimed at securing judicial independence

 

The previous section has briefly explained why judicial independence is important for maintaining judges' impartiality and the rule of law. This section now focuses on how judicial independence can be guaranteed in its fundamental aspects (external, internal, institutional and individual independence). Various mechanisms are possible, and a range of examples are provided to encourage debate and develop critical thinking.

Judicial independence is a multifaceted concept. There are different institutional, legal and operational arrangements that in abstracto are designed to ensure judicial independence, and they can work differently depending on the historical, political, legal and social context in which the judiciary operates. Therefore, there is not an ideal model of implementing judicial independence in the sense that one-size-fits-all. Judicial independence is - in more concrete terms - the result of a combination of different conditions, measures, checks and balances, that can vary from one country to another. Every country has to find its own balance.

In some countries, for example, judicial independence is basically secured through a self-governing body or council (composed mainly of judges) which is in charge of all the decisions concerning judges' recruitment/nomination, career, transfer and discipline. This occurs, for example, in France, Italy, Mongolia, Nigeria, Poland, Romania, Spain, and Ukraine. In other countries, such as Kenya, South Africa, India, Germany, Austria, Czech Republic, India, Kenya, South Africa, the United States, there is no equivalent body, and judicial independence is thereby secured through various other mechanisms. Therefore, what is deemed to be an essential measure in some countries may be not considered as such in others. This reveals rather different views on the institutional means needed to protect judicial independence.

The process of defining the institutional requirements of judicial independence has by no means come to an end. For example, the oldest institution of the British constitutional system, the office of Lord Chancellor, has been recently redesigned in an effort to bring about a clearer separation between the branches of the State, and to enhance the independence of the judiciary (see the UK Constitutional Reform Act, 2005; Shetreet and Turenne, 2013).

The protection of judicial independence is usually considered as including various aspects that operate on different levels: external and internal independence, and institutional and individual independence. External independence refers to the independence of the judiciary from the political branches (Executive and Legislative power), as well as any other nonjudicial actor. Although there must, of necessity, be some relations between the judiciary and the political powers (especially the Executive), as stated in the Commentary on the Bangalore Principles "such relations must not interfere with the judiciary's liberty in adjudicating individual disputes and in upholding the law and values of the Constitution" (2007, para. 26). Internal independence focuses on guarantees aimed at protecting individual judges from undue pressure from within the judiciary: from other judges and, above all, from high ranking judges. High ranking judges may, for example, exert supervising power over courts' administration (depending on the organization of the judicial system), but they must not - in any way - influence the substance of judges' decision-making.

Institutional independence pertains to the institutional and legal arrangements designed ex ante by the State to shield judges from undue pressure and influence. From this point of view, the most important factors concern the way in which judges are recruited, evaluated, and disciplined, the governance of the judiciary and courts' administration.

5 0
2 years ago
Read the following passage carefully before you choose your answers.
Kamila [148]

Based on the details given in the story, we can infer that Dorcas agrees to go because C: she believes that she brings whatever she needs most along with her.

<h3>What does the passage say about Dorcas?</h3>

We find out that Dorcas feels really bad about leaving because of the ties she has formed with people.

She however still felt that those ties and the people they tied her to, would stay with her as she moved on and these are what she needed the most. Every other thing she might need apart from these would be found wherever she goes.

In conclusion, option C is correct.

Find out more on short stories at brainly.com/question/1410153.

8 0
2 years ago
Evelyn would like to take a trip to Puerto Rico to visit her cousin. Which of the following goals is a good goal for her? I will
lord [1]
A good goal for Evelyn would be that I will work one extra shift per week, and I will set aside $150 per paycheck to purchase a plane ticket to Puerto Rico
8 0
3 years ago
Read 2 more answers
Write a paragraph (100-200 words) about what you believe is the political agenda and goal of the special interests group that re
lord [1]

1. The Rio+20 outcome document, The future we want, inter alia, set out a mandate to establish an Open Working Group to develop a set of sustainable development goals for consideration and appropriate action by the General Assembly at its 68th session. It also provided the basis for their conceptualization. The Rio outcome gave the mandate that the SDGs should be coherent with and integrated into the UN development agenda beyond 2015.

2. Poverty eradication is the greatest global challenge facing the world today and an indispensable requirement for sustainable development. The Rio+20 outcome reiterated the commitment to freeing humanity from poverty and hunger as a matter of urgency.

3. Poverty eradication, changing unsustainable and promoting sustainable patterns of consumption and production and protecting and managing the natural resource base of economic and social development are the overarching objectives of and essential requirements for sustainable development.

4. People are at the centre of sustainable development and, in this regard, Rio+20 promised to strive for a world that is just, equitable and inclusive, and committed to work together to promote sustained and inclusive economic growth, social development and environmental protection and thereby to benefit all, in particular the children of the world, youth and future generations of the world without distinction of any kind such as age, sex, disability, culture, race, ethnicity, origin, migratory status, religion, economic or other status.

5. Rio+20 also reaffirmed all the principles of the Rio Declaration on Environment and Development, including, inter alia, the principle of common but differentiated responsibilities, as set out in principle 7 thereof.

6. It also reaffirmed the commitment to fully implement the Rio Declaration, Agenda 21, the Programme for the Further Implementation of Agenda 21, the Plan of Implementation of the World Summit on Sustainable Development (Johannesburg Plan of Implementation) and the Johannesburg Declaration on Sustainable Development, the Programme of Action for the Sustainable Development of Small Island Developing States (Barbados Programme of Actioaration of the High-Level Dialogue on International Migration and Development.


7 0
3 years ago
Other questions:
  • How do geographers divide the world into regions
    13·1 answer
  • How did the rulers of the Native American, European, and African Empires and Kingdoms secure and sustaine their power
    8·1 answer
  •   Usually, loads of more than ______ pounds require the assistance of a second person.        A. 40   B. 20   C. 50   D. 30
    6·1 answer
  • Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
    8·1 answer
  • What is a theme. Please tell it in a sentences.
    14·1 answer
  • What does the chloroplast do in depth
    6·1 answer
  • 2) Nationalities share all BUT which of the following?*
    12·1 answer
  • Whats the mental equation that goes on in your head that explains equations
    14·1 answer
  • What color are most peaches?
    12·1 answer
  • ABC is a triangle.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!