This website uses cookies to ensure you have the best experience. Learn more

Statistic Notes For Business Stat University Of Technology, Sydney Assignment

1915 words - 8 pages

5.2 Probability distribution for discrete random variable
What is a random variable?
A numerical characteristic that takes on different values due to chance
Examples
Coin Flips:
Every single time we flip a coin, the number of heads is a random variable because the results will vary between trials.
Heights:
Sample of 100 are pulled from the population and their heights are measured. Mean height is a random variable because the statistic will vary between samples.

Classified into two broad types: Discrete and continuous
Discrete: Countable set of distinct possible values; It allows us to look at measures based on differences (fixed/constant unit)
Example: Number of heads in 4 flips of a coin
Continuous: Any value (to any number of decimal places) within some interval is a possible value
Example: Time to finish a test

Probability distribution (0?P?1)
For a discrete random variable, its probably distribution is any table, graph, or formula that gives each possible value and the probability of that value

Properties:
Suppose a random variable X may take k different values, with the probability that X = xi defined to be P(X = xi) = pi. The probabilities pi must satisfy the following:
1:
2: mmation is over all possible values taken by the random variable

Test 1 Time - START FINISH

1. In the random experiment of tossing two fair coins where the random variable is the number of heads observed, we have

Outcomes
Value of X
Probability

TT
0

TH HT
1

HH
2

2. In an examination paper, there are three multiple choice questions, for each which only one of the five given answers is correct. A student receives four marks for a correct answer and loses one mark for an incorrect answer. If the student guesses the answer to each question, then for each question the probability of given the correct answer is 1/5 and the probability of giving an incorrect answer is 4/5. Representing the correct answer by C and an incorrect (wrong) answer by W, the eight outcomes in the sample space, and the probabilities of these outcomes are:

Outcome







Probability







The probability distribution of the random variable, X, the number of correct answers, is:

x
P (X=x)

0

1

2

3

The probability distribution of the random variable, Y, the number of marks scored by the student, is:

y
P(Y=y)

-3

2

7

12

5.3 Binomial distribution
What is involved in binomial distribution?
Binomial Experiment (statistical experiment):
? The experiment consists of n repeated trials
? Each trial can result in just two possible outcomes. We call one of these outcomes a success and the other, failure
? The probability of success, denoted by P, is the same on every trial
? The trials are independent; that is, the outcome on one trial does not...

Find Another Essay On Statistic notes for Business Stat - University of Technology, Sydney - Assignment

steps to choose the best power generation technology - University of Colorado Boulder/ ENEN 4600 - Assignment

668 words - 3 pages cost from both environmental and human health aspect, job creation, social acceptability and external supply risk. The next subsection is the weighting of sustainability indicators. Weight is assigned to each indicator based on perceived Muhammad? ?Haffizi? ?Abdul? ?Rahman ENEN? ?4600 Writing? ?Assignment? ?2 importance after providing scores for the selected technologies across ten sustainability indicators. The results of the weighting found

China's exchange marketing (case) - ASIA PACIFIC UNIVERSITY OF TECHNOLOGY & INNOVATION - ASSIGNMENT

3751 words - 16 pages participants in a commercial business or in any business organization, whether among individuals and organization or among organizations. In the financial market for China, there are two official institutions which play role monitoring and supervision of securities market which are China Securities Regulatory Commission “CSRC” and China Central Bank “CCB”. China has been started set up or organization corporate governance in 1990 when establishment SZSE

Marketing Channel Essay - University of Sydney - Essay

441 words - 2 pages located to university’s student center that already has work force and experience of serving student. Using of existing employees of student center save time and money for employing more people and train people. Moreover, the channel offers great coverage of market as the university students are highly access to Internet. The online and offline channel cover almost all the university students. Furthermore, the idea of business is possible to be

APPLIED STATISTICS FOR BUSINESS 2 - VICTORIA UNIVERSITY - Assignment

518 words - 3 pages . Table 3: Descriptive Statistics N Minimum Maximum Mean Std. Deviation POSITIVE 55 0 1 .40 .494 Valid N (listwise) 55 Q4. Check normality Table 4: Descriptive Statistic for BEFORE N Valid 100 Missing 0 Mean 47.88 Std. Deviation 15.441 Skewness .076 Std. Error of Skewness .241 Kurtosis -1.106 Std. Error of Kurtosis .478 Table 5: Descriptive Statistic for AFTER N Valid 100 Missing 0 Mean 52.36 Std. Deviation 32.567 Skewness 2.308 Std. Error of

business attributes towards an organisation - university of california - business assignment

3726 words - 15 pages Assignment: Select a business company supplying a product/service of your choice. 1. Identify the factors likely to affect the purchasing behaviour of customers in your target market when purchasing your chosen product/service. 2. Recommend how the business company might try to influence and respond to the behaviour of the customers in their target markets. 1. Company background Lavi Industries, founded in Valencia, California in 1979

Commercialization of University Technology

1245 words - 5 pages works and what academic innovations are available to them. Sprinkle (2006) points out that this problem can be solved, if TTOs get registered with networks like brigade (www.iBridgeNetwork.org) to alert industry partners. The last stage comes is finding the modes of technology transfer to industrial partners and defining its mechanisms. The research products of a university are rarely suitable for direct exploitation as commercial products or

Technology Advances for Business

1417 words - 6 pages I. Introduction In today’s modern world, technology changes day by day. Without the use of appropriate and most modern technologies, businesses are not able to persist or sustain long. In order to develop a human resource department that is efficient, effective, and most up to date, there are certain technologies which have been introduced and are imperative for an organization to possess. The HRIS or Human Resource Information System is one of

The Health of Young People - Sydney Girls High School - Assignment

2093 words - 9 pages creating a sense of future for young people. Examples of global events and trends that may influence the lives of young people include fashion, climate change, world economic downturn, recreational activities, music, sport, advances in technology (iPhone, mp3 players and multimedia) Influence of Technology There have been rapid advances in communications technology over the last few decades that have resulted in wide use of the internet, email, blogs

Business Analysis of Sydney Tower Restaurants Tourism Pty Ltd

1755 words - 7 pages of customers a business focuses on when marketing a particular product or service. Sydney Tower Restaurants have several target markets, specified to each level. Ø Level 1 (International Revolving Restaurant): · special occasions (eg birthdays), as this level is a little more expensive Ø Level 2 (Self Select Revolving Restaurant): there are 3 target markets for this level, which include - · families, as

Real world case study of the Business stat class - BUS2320 - Real world case study

1925 words - 8 pages University, I will not participate in or tolerate academic dishonesty. By signing below, I attest that we have performed this analysis without sharing information about this assignment with individuals outside of our group. I understand that any violation of this statement by handing in any portion of another individual’s or group’s work as our own constitutes academic misconduct. I understand that giving any portion of my group’s work to another

Impact of Technology and Business management today - Daystar University - Research paper

1769 words - 8 pages Technology 1 7 Impact of technology on business and management today 15-0784 Andrew W Rubia Daystar University ENG 112T: Advanced Writing Submitted to Mrs. Caroline Rugendo Department of Languages and Performing Arts School of Communication, Language and Performing Arts Date of submission: November 29th 2015 Outline Thesis Technology should be embraced in Business and Management Thesis statement Technology has a positive impact on Business and

Similar Essays

Corporate Law Ethics Reflection University Of Sydney, Corporations Law Assignment

1691 words - 7 pages be chiefly motivated by ethical and practical concerns for the constituents affected by Purple’s unscrupulous import practices. As Progressive theorists propose, insofar as companies are part of an entangled web of social relationships, such dealings, burden not only the shareholders and contractual creditors but also, employees, involuntary creditors, customers and the community at large.[footnoteRef:17] Purple’s unethical business practices go

Assignment 1 For Marketing 4 Durban University Of Technology

3412 words - 14 pages computing, 1(1): 73. Jacobides, M. 2010. Strategy Tools for a Shifting Landscape. Harvard Business Review, 77, no. January/February: 77 - 84. PESTEL analysis of the macro-environment. 2007. Oxford University Press. Pierce, A. 2007. Turning green in to gold. Marketing News (online), 41(16):20. Available: http://www.proquest.umi.com/login (Accessed 10 April 2017). Polonsky, M. J. 1994. An introduction to green marketing. Electronic Green

Global Operations And Supply Chain Management Report Murray Goulburn University Of Technology, Sydney Research Papers

2090 words - 9 pages report discusses two main instances that show how internal firm decisions and external customer activities have critically impacted the integration of this supply chain. Noting the market share and influence of Murray Goulburn within the dairy industry, recommendations are industry focused and acknowledge the need for governmental interventions as well direct actions the firm may undertake to ensure greater transparency and communication

English 103 Tony Kushner Assignment Prep Notes University Of Alberta Assignment

1014 words - 5 pages Gurleen Randhawa English 103 Group 6 Kushner And Religion Prep Notes Kushner’s Angels is America explores endless cross-disciplinary possibilities in the theme of religion through the process of self-awareness and adaptation of the characters. Characters connections to religion Louis -is Jewish by birth but was never able to embrace the concept which may have led to the severed ties from his family. (the play starts with his grandmother’s