Predictability of Social Media Usage to Grade Averages IB Math Studies Spring 2013 Table of Contents: Introduction/Purpose……………………………………………………………..p.3 Data Collection Method……………………………………………………….....p. 3 - 4 Data Analysis: Chi-Squared Statistic Frequency Table…………………………………………………………p. 4 - 5 Contingency Table……………………………………………………….p. 5 – 6 Chi – Squared Statistic…………………………………………………...p. 7 Degrees of Freedom………………………………………………………p. 7 Critical Value……………………………………………………………
Premium Null hypothesis Statistical hypothesis testing Hypothesis
Chi-square tests 1. INTRODUCTION 1.1 χ2 distribution and its properties A chi-square (χ2) distribution is a set of density curves with each curve described by its degree of freedom (df). The distribution have the following properties: - Area under the curve = 1 - All χ2 values are positive i.e. the curve begins from 0 (except for df=1) increases to a peak and decreases towards 0 as its asymptote - The curve is skewed to the right‚ and as the degree of freedom increases‚ the
Premium
Building Projections Charge per Square Feet to provide general cleaning 2‚000 Square Feet or less @ .13-.15 cents 2‚000 4‚000 Square Feet @ .09 cents 5‚000 7‚000 Square Feet @ .07-.08 cents 7‚000 10‚000 Square Feet @ .05 cents 10‚000 Square Feet and up @ .04 cents Carpet Shampooing or Extraction is separate @ .13-.15 cents Stripping and Waxing Tile Floors is separate @ .26-.30 cents Spray Buffing tile floors can or cannot be separate‚ this can be included in the General Bid
Premium Marketing Storey Building
Why we have laws- The law is a legal set of rules that the government and courts have made for everyone to follow. Without laws‚ confusion and chaos would occur. In extreme cases of conflict‚ a state of anarchy would develop. The person with the most strength will start to dominate and the weak and helpless would suffer. However‚ when laws are enforced‚ a sense of order is created resulting in a society where everyone can live peacefully. Why laws change-? Societies’ perceptions have changed over
Premium Law Legislature Statute
7.1 Newton’s Law of Universal Gravitation Newton’s Law of Universal Gravitation states that: Every particle attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Consider two particles of masses m1 and m2 separated by a distance r. Each will exert a force F on the other‚ given by where F : gravitational force between the two particles. m1‚ m2 : masses of the
Premium Mass Gravitational constant Newton's laws of motion
The first time I attended Macy ‘s Herald Square on W 24th St I was a junior in high school. My fashion merchandising and management 1B class went there on a field trip to acquire some of their history and information on what it takes to run such a large retail store. When our tour guide was finished we had free time to explore the store. I remember wanting to shop but being too overwhelmed because I wasn’t looking for anything particular and couldn’t decide where to start or where to go. At the end
Premium High school Family English-language films
The saying of “going back to square one” is widely employed within the English language today for its applicability to several kinds of scenarios in our everyday lives - particularly scenarios involving stagnation and resignation. I’ve always been a fairly lax individual‚ comprehending academic material rather quickly. Because I wasn’t being posed any academic challenge and was stagnating in progress in primary school‚ I was granted the opportunity to jump an entire school year ahead‚ circumventing
Premium High school Performance
determine the financial position of the Square Pharmaceutical Limited and to make a judgment of how well is the efficiency of Square Pharmaceutical Limited‚ its operation and management and how well the company has been able to utilize its assets and earn profit. We use ratio analysis for easily measurement of efficiency‚ liquidity position‚ asset management circumstance‚ investment condition‚ profitability‚ market value and debt coverage situation of the Square Pharmaceutical Limited for performance
Premium Financial ratios Financial ratio Generally Accepted Accounting Principles
Florence Low Poh Geok Program / Intake: BCom27 Module: Commercial Law Lecturer: Daniel Theyagu Student ID: 32736209 Program Manager: Hazel Ong / Ang Kang Ling Total Words Count: 1998 Question 1A The legal point in question is whether Leila advertisement constitutes a binding contract and that she go can back on her promise of paying the reward $50 to Julie for returning the gold chain and locket to her. Relevant principle of law relating to this issue is that an advertisement made to the world
Premium Contract Contract law Breach of contract
The English word “law” refers to limits upon various forms of behavior. Some laws are descriptive: they simply describe how people‚ or even natural phenomena‚ usually behave. An example is the rather consistent law of gravity; another is the less consistent laws of economics. Other laws are prescriptive - they prescribe how people ought to behave. For example‚ the speed limits imposed upon drivers that prescribe how fast we should drive. They rarely describe how fast we actually do drive‚ of course
Free Law Political philosophy Thomas Hobbes