PPT-Visualising sampling Variation at Level 7

Stats Day 2014 Jason Ellwood Otumoetai College Today A look through and go at some activities designed to give students visual and conceptual  appreciation of what sampling variation is and how it impacts on statistical investigation in 91264. to paralinguisticphonetic variation and attempted solutions are discussed.1 IntroductionOne of speaker specific qualities like age, sex,emotions and attitudes. for different typically made by lingu For use with Chapter 4 of:. Galloway, N. and Rose, H. (2015). . Introducing Global Englishes. . . Routledge. .. © Dr. Heath Rose and Dr. Nicola Galloway. Review of Lecture 3. There are many advantages to having a global lingua franca – increased . Sampling is perhaps the most important step in assuring that good quality aggregates are being used on INDOT contracts. Since a sample is just a small portion of the total material, the importance th an investigation into communicative effectiveness. using mobile app usage data.. Henry Holbrook and Clive Cartwright. BCS ‐ . SoC. Conference. Mapping Together. 8th-10th . September . 2015 . · . York. EDRC 2015, Heidelberg. Visualising interaction networks. Visualising interaction networks. Physical interactions. Visualising interaction networks. Genetic interactions. Collaboration with esyN (. www.esyn.org. Goal: Use inverse variation and joint variation models.. Warm-up. Simplify:. Inverse Variation. 2 variables, x and y, vary inversely if:. k is called the constant of variation.. Example 1. Tell whether x and y show direct variation, inverse variation, or neither:. Image from about.com . meiosis_metaphase_1.jpg. . Mutations. (changes in an organism’s DNA) are the . original. . source of . all. genetic variation. Mutations create different versions of genes called . What do you mean by variation..?. Differences between species. Differences within a species. SPECIES : . A . species.  is a group of organisms that are able to interbreed and produce . fertile.  offspring.. Dr Alasdair Rutherford. University of Stirling. What do we mean by uncertainty?. The simplest way to show uncertainty is the distribution of a variable. But showing all the data doesn’t really summarise. When a problem states that variable X varies directly as variable Y, we know that the relationship implied is . . X = . kY. And that the first step in solving the problem is to find the value of the constant of proportionality k. . Parents. Progeny (children). A. B. C. 1. 2. 3. Parents. Progeny (children). A. B. C. 1. 2. 3. Johnny Ball. Zoe Ball. Parents. Progeny (children). A. B. C. 1. 2. 3. John Lennon. Julian Lennon. Parents. 7. Introduction. In . a typical statistical inference problem, you want to discover one or more characteristics of a given population. .. However, it is generally difficult or even impossible to contact each member of the population.. y = . kx. , where k ≠ 0. . The constant of variation for a direct variation . k. is the coefficient of . x.. Example of direct variation. : The time it takes to hear thunder varies directly with the distance from lightning. (As the distance from lightning increases, so does the time it takes you to hear the thunder!). 1. Attributes of Common Cause Variation. It is the variation inherent to a Process.. It cannot be reduced unless one changes the Process.. It can be considered to be the background noise present in a Process..