STAT 110 INTRODUCTION TO DESCRIPTIVE STATISTICS Fall‚ 2006 Lecture Notes Joshua M. Tebbs Department of Statistics The University of South Carolina TABLE OF CONTENTS STAT 110‚ J. TEBBS Contents 1 Where Do Data Come From? 1 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Individuals‚ variables‚ and data . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Observational studies . . . . . . . . . . . . . . . .
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Physical exercise is any bodily activity that enhances or maintains physical fitness and overall health. It is performed for many different reasons. These include strengthening muscles and the cardiovascular system‚ honing athletic skills‚ weight loss or maintenance and for enjoyment. Frequent and regular physical exercise boosts the immune system‚ and helps prevent the "diseases of affluence" such as heart disease‚ cardiovascular disease‚ Type 2 diabetes and obesity.[1][2] It also improves mental
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Exercise 1 Decrypt each of the following Caesar encryptions... (a) LWKLQNWKDWLVKDOOQHYHUVHHDELOOERDUGORYHOBDVDWUHH (b) UXENRBWXCUXENFQRLQJUCNABFQNWRCJUCNAJCRXWORWMB (c) BGUTBMBGZTFHNLXMKTIPBMAVAXXLXTEPTRLEXTOXKHHFYHKMAXFHNLX Exercise 2 For this exercise‚ use the simple substitution table given in Table below. a b c d e f g h i j k l m n o p q r s t u v w x y z S C J A X U F B Q K T P R W E Z H V L I G Y D N M O Table 1.11: Simple substitution encryption table (a) Encrypt the plaintext
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PER 368 – Exercise Physiology Name ____Maggie Hoyt_____ Homework Assignment Chapter 08: Cardiorespiratory Responses to Acute Exercise 1. List 6 components of the cardiorespiratory system that occur during acute exercise. 1) Heart Rate 2) Stroke Volume 3) Cardiac output 4) Blood Pressure 5) Blood Flow 6) The Blood 2. As heart rate INCREASES or decreases‚ the intensity of exercise INCREASES or decreases. 3. Define maximum heart rate (HRmax). The Highest HR value achieved in an all-out
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Vocabulary and Grammar Exercises. 1.1. (20 x 1 point) Supply the articles where necessary. Write your answers (a‚ an‚ the or ‘−’) in the boxes. a) It’s __(1)__ plant of __(2)__ telephone equipment. ___(3)__ plant is outside Moscow. It’s __(4)__ very large plant. __(5)___manager of our company is going to visit __(6)__ plant with __(7)__ Chief Engineer of GML on Friday. b) ___(8)___ price for ___(9)___ pump was 500$. ___(10)___ offer suited ___(11)___ Buyers and they decided
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CHAPTER 1 Understanding the issues 1. (a) horizontal combination—both are marine engine manufacturers (b) vertical combination—manufacturer buys distribution outlets (c) conglomerate—unrelated businesses 2. By accepting cash in exchange for the net assets of the company‚ the seller would have to recognize an immediate taxable gain. However‚ if the seller were to accept common stock of another corporation instead‚ the seller could construct the transaction as a tax-free reorganization
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Ratio | Industry benchmark ratio | Woolworths’ ratio | Brief Comment | Current Ratio | 1.2:1 | 0.80:1 | The current ratio ofWoolworth is considerablybelow industry average themovement from it is 33.33% (1.2-0.8)/1.2*100) Which is not really good for business | Liquid ratio | 0.7:1 | 0.34:1 | The Liquid ratio of Woolworth is considerably below industry average. The movement is 51.43 %. It is showed that the business may have problem in paying their debt.(0.7-0.34/0.7*100) | Gross Profit ratio
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1. “What is the life expectancy for Caucasian males that have survived 54 years?” The answer will almost certainly be larger than 72. I want an estimate “conditioned on” the fact that I have already lived 54 years. Life is dynamic. Things are constantly changing. However‚ too often decisions are based on static information. Bayes theorem takes advantage of dynamic information to give a better‚ more correct answer. Bayes Theorem is a mathematical representation that helps one to calculate conditional
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QUESTION 21 The finishing process on new furniture leaves slight blemishes. The table below displays a manager’s probability assessment of the number of blemishes on one piece of new furniture. Number of Blemishes 0 1 2 3 4 5 Probability 0.34 0.25 0.19 0.11 0.07 0.04 1. On average‚ how many blemishes do we expect on one piece of new furniture? 2. What is the variance of blemishes on one piece of new furniture? (round to the nearest hundredth) QUESTION 22 The probability
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GE2402: English for Business Communication Week 7 Supplementary Exercises _____________________________________________________ For each question‚ circle the letter (a‚ b‚ c‚ or d) which corresponds to the most suitable answer. 1. To overcome any possible reader resistance‚ you should a. make your request immediately. b. bribe your reader. c. lay a logical foundation before the request is delivered. d. state very clearly the negative consequences of not doing as you
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