The population standard deviation σ of a discrete random variable ‚ Measure how close a random variable tends to be the population mean μ‚ so you must understand μ before you understand σ If you have a random variable like a bet at a casino or and investment then the standard deviation σ measure the risk‚ if there is a lot of risk then the standard deviation is high The formulas for standard deviation are given below but you should look at the examples first Population mean Population variance
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STANDARD DEVIATION The standard deviation is a popular measure of variability. It is used both as a separate entity and as a part of other analyses‚ such as computing confidence intervals and in hypothesis testing. The standard deviation is the square root of the variance. The population standard devia¬tion is denoted by σ. Like the variance‚ the standard deviation utilizes the sum of the squared deviations about the mean (SSx). It is computed by averaging these squared deviations (SSX/N) and
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A. What is the mean age of this sample? What is the standard deviation? The mean age is 47.5 years old. The standard deviation is 10.74832 years. http://www.calculator.net/standard-deviation-calculator.html Sample Standard Deviation‚ s: 10.748316881702 Sample Standard Variance‚ s2 115.52631578947 Total Numbers‚ N 20 Sum: 950 Mean (Average): 47.5 Population Standard Deviation‚ σ 10.476163419878 Population Standard Variance‚ σ2 109.75 If it follows the normal distribution The
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following for the data in Column K‚ “The degree of agreement among patrons that Remington’s has large portions‚” on the Remington Data worksheet of the Remington’s Data Set workbook: Mean -3.26 Standard deviation-0.911 Range -3 4 Mean 3.261306533 Standard Error 0.064596309 Median 4 Mode 4 Standard Deviation 0.911243075 Sample Variance 0.830363941 Kurtosis -1.16899198 Skewness -0.663704706 Range 3 Minimum 1 Maximum 4 Sum 649 Count 199 Largest(1) 4 Smallest(1) 1 Confidence Level(95.0%) 0.12738505 Include
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Week 2 – 2hr Workshop - Contingency KEY TERMS AND CONCEPTS Contingency: a theory meaning one thing depends on other things. Contingency approaches: approaches that seek to delineate the characteristics of situations and followers and examine the leadership styles that can be used effectively. Fiedler’s contingency model: a model designed to diagnose whether a leader is task-oriented or relationship-oriented and match leader style to the situation. Situational theory: Hersey and Blanchard’s
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This essay sets out to show where the four popular management contingency variables of organisational size‚ routineness of task technology‚ environmental uncertainty and individual differences are reflected in the work of the manager that was interviewed. Using classical theories of Fayol‚ Mintzberg and Katz along practical examples from the managers’ day-to-day routine‚ this essay sets out to explain how these theories and functions impact upon how the manager applies the situational approach to
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Financial Contingency Planning: Sources of Funding AJS/522 May 12 2014 Adam Eaton Financial Contingency Planning: Sources of Funding California has the largest prison population in the United States and some countries around the world. For over 40 years‚ the incarceration levels have risen. The prison rates have risen 700 percent since 1970‚ today it is estimated that one in 100 adults are incarcerated. Who pays the bill for this large increase‚ tax payers have and will continue until the
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starbucKs CoFFee 2011-2013 advertising & marKeting pLan ba 174 advertising tues. thurs. 9am-12:15pm june 15‚ 2010 sam Lehnert | CommerCial ad‚ Situation analySiS‚ web Site‚ dVd and CoVer deSign danieLLe gore | ControlS‚ Final editing & Compiling‚ adVertiSing SeCtion michaeL corn | marketing‚ & print‚ radio‚ and billboard adS‚ adVertiSing SeCtion brittany Love | FinanCialS Katie boggs | FinanCialS ba 283 management mW 11:30-1:00 4/21/2010 andrew poSSehl John Vankley taylor
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Family Emergency Preparedness FLOODING WILDFIRES WINTER STORMS http://www.netstrategies.com/blog/wpcontent/uploads/2010/03/4346823749_21f850483b_o.jpg http://airboats4sar.com/news/media /blogs/News/evac1.jpg HURRICANES http://www.co.benton.or.us/sheriff/ems/images/20 03CAHwy18Fire_001.jpg PANDEMIC TORNADOS http://www.grangermedical.com/images/cdch1n1-8.jpg http://blog.al.com/spotnews/2009/03/large_alaba ma%20tornado.jpg http://web.arch.usyd.edu.au/~andrew/infodevi ce_2008/students/cyclone/
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International Compensation – Starbucks Case [pic] Starbucks takes good corporate citizenship seriously. Among Starbucks’ many initiatives is its association with Fair Trade and Conservation International to help farmers in third-world countries get a premium for the coffe they grow. But in the other side‚ there are still some problem that faced by Starbucks. Worker complaints from Starbucks’ baristas in the past couple of years have resulted in negative publicity for Starbucks. Recently‚ an outburst
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