Modelling 2 Week 3: Discrete Random Variables Stephen Bush Department of Mathematical Sciences MM2: Statistics - Week 3 - 1 Random Variables • Reference: Devore § 3.1 – 3.5 • Definitions: • An experiment is any process of obtaining one outcome where the outcome is uncertain. • A random variable is a numerical variable whose value can change from one replicate of the experiment to another. • Sample means and sample standard deviations are random variables • They are different from sample
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2-Variable Inequality Here is an example of a problem very similar to the one in the Week Three Assignment: Catskills Hammock Company can obtain at most 2000 yards of striped canvas for making its full size and chair size hammocks. A full size hammock requires 10 yards of canvas and the chair size requires 5 yards of canvas. Write an inequality that limits the number of striped hammocks of each type which can be made. (b) First I must define what variables I will be using in my inequality
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Question 1 .5 out of 5 points The __________ is the maximum value that one would be willing to pay for additional information Answer Selected Answer: expected value of perfect information . Question 2 .0 out of 5 points The credit scores of a certain population are approximately normally distributed with a mean of 645 points and a standard deviation of 65 points. The credit score of an individual should belong to the top 5% of the credit scores in order to qualify for a home loan
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PAPER – 5 : ADVANCED MANAGEMENT ACCOUNTING QUESTIONS Marginal Costing Vs. Absorption Costing 1. During the current period‚ ABC Ltd sold 60‚000 units of product at Rs. 30 per unit. At the beginning for the period‚ there were 10‚000 units in inventory and ABC Ltd manufactured 50‚000 units during the period. The manufacturing costs and selling and administrative expenses were as follows: Total cost Rs. Beginning inventory: Direct materials Direct labour Variable factory overhead Fixed factory overhead
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Lab The Purpose of this was to analyze how the Marigold plants grew under certain conditions. The Objective was to determine the amount of growth these plants went through by measuring the changes in the selected variables. The Variables that we selected were stem length‚ root length‚ the amount of leaves that grew on a plant and the overall size of the plant measured in height. For this experiment‚ we had three test groups‚ the first two groups had five seeds and the third group has 10 seeds
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Extraneous Variables There are many extraneous factors and situations that could affect our research; such as‚ biological factors‚ family issues‚ marital problems‚ transportation‚ insurance issues‚ how often participants choose to show up to their therapy session‚ etc. While extraneous factors and situations are bound to happen‚ we can not account for all of them as they will be happening as the research progresses and are out of our control. Qualitative Design We will observe two themes throughout
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Experiment 3: Solution Calorimetry: Thermodynamics of Potassium Nitrate II. Abstract A determination of thermodynamic variables of KNO3 is presented. KNO3 was heated and dissolved in varying volumes of distilled water. Upon dissolution‚ the KNO3 solution was removed from heat and the temperature was recorded once crystals formed. For each solution‚ ∆G the Ksp were found with the temperature and molarity values. ∆H and ∆S were found through the linearization of the data with
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TUI University Variable and Fixed Cost Module 1 Case Dr. Li-Lin Liu Pa April 22‚ 2012 Part I: Use the background material and Internet to answer the questions below. Discuss and analyze the difference between managerial and financial accounting. Pay particular attention to: * How is managerial accounting different from financial accounting? Comment on the different needs and use of financial information for internal purposes. * The managerial accounting profession and its role
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2 IEEE TRANSACTIONSON INDUSTRIAL ELECTRONICS‚VOL. 40‚ NO. 1‚ FEBRUARY 1993 Variable Structure Control: A Survey John Y. Hung‚ Member‚ IEEE‚ Weibing Gao‚ SeniorMember‚ IEEE‚ and James C. Hung‚ Fellow‚ IEEE Abstract-A tutorial account of variable structure control with brief discussions about its historical development are pre- sliding
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Unit 4 Research Paper Assignment 1: Using Global Variables 1. Five advantages of using global variables • It is accessible to all modules in a program • You only have to declare it once outside the modules • It is good to use it for constants you want to keep consistent • It simplifies maintenance‚ avoids duplication of local constants • It can make a program easier to read in reference to constants Five disadvantages of using global variables • It makes debugging difficult • Any statement
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