basic concepts of statistics notes

Muna Kalati

Basic Concepts In StatisticsEquations and Inequalities CHAPTERCHAPTER 1 1 Objectives 1 Understand the role of statistics in real life. See our Privacy Policy and User Agreement for details. students is {53.1, 59.4, 62A, 77.8, 64.4} and one of the member of set is 77.8 The chapter reviews the differences between nonexperimental and experimental research and the differences between descriptive and inferential analyses. The most fundamental branch of statistics is descrip- tive statistics,that is, statistics used to summarize or describe a set of observations. Sem-IV In our example, the population is the set of all students, that is, the 200 students. The application of statistics is broad indeed and includes business, marketing, economics, agriculture, 1. It would support the arguments by providing the relevant data and how knowledge, education can be of great help to the girls of the modern age. Statistics is the area of study dealing with the collection, presentation, analysis of data as well as drawing of meaningful conclusions from the data. Statistical data, Example A box contains two coins, a regular coin and one fake two-headed coin (P(H)=1P(H)=1). 2 Understand the definition of basic Statistical concepts. A set containing all the numbers is called a population. By considering the FBD, we can clearly define the exact system of forces which we must use in the investigation of any constrained body. Crash Course on Basic Statistics Marina Wahl, marina.w4hl@gmail.com University of New York at Stony Brook November 6, 2013 Quiz: Introduction to Statistics Previous Probability. throwing two dice, dealing cards, at poker, measuring heights of people, recording proton-proton collisions) Outcome: a single result from a measurement (e.g. Basic Concepts of Statistics Notes. (c) Find, (Given the probability distribution below. Dot Plot.  Some Statistical Terms The sample space is the collection or totality of all possible outcomes of a  Introduction Statistical data are the basic raw material of statistics. Outcome: Whatever is the result of the experiment is known as the outcome. MA120 Basic Concepts of Statistics syllabus, MA 208 - Discrete Mathematics The branch of statistics used to interpret or draw inferences about a set of observations is fittingly referred to as inferential statistics. implies that probabilities must follow a few basic rules: Pr(A) ≥ 0 Pr(∅)=0 Pr(Ω)=1 (the relative frequency of all Ωis obviously 1). It enables us to check the body for equilibrium. (49 Documents), MA 213 - Calculus and Analytic Geometry IV The Least Squares Approach 4. For example:- the number of stamps sold by a post office in equal period of time. Some members selected at random from a It describes the different types of variables, scales of measurement, and modeling types with which these variables are analyzed . A basic box plot. We should mention that Pr(A)=0does not necessarily imply that A= ∅. Statistics is a study of data: describing properties of data (descriptive statistics) and drawing conclusions about a population based on information in a sample (inferential statistics). You can see why choosing a random sample is a critical part of the process of statistics. Discrete and continuous data (a) Construct the relative and the cumulative relative frequency distribution tables. statistics. This material includes a set of instructional modules, each containing a set of slide images accompanied by a video clip version of the associated lecture. As a student reading these notes you will likely have seen (in other classes) most or all of the ideas discussed below. 1.2 Basic statistical concepts. attempts to prove basic theorems and a Balls and Urns type of discussion. 6 Statistics The science of collecting, monitoring, analyzing, summarizing, and interpreting data. 5 Determine the measurement level for each variable. LECTURE NOTES #1 Reading assignment Review MD chs 1&2 or G chs 1-5. Chapter 2 Reading instructions Ł 2.1 Introduction: Not very important Ł 2.2 Uncertainty and probability: Read ... Explorative statistics aims to find ineresting results that Can be used to formulate new objectives/hypothesis for further investigation in future studies. For more content related to this post you can click on labels link. They derive as a result of the process of measuring, counting and/or observing. 1.1 Statistics in Business. Probability is concerned with the outcome of tri-als.? Exponential distribution. Previous What is the presumption of classical probability? This is because one sample does not perfectly represent the population, and different samples may give different results. computer science. 3 min read. Class 10 Mathematics Notes - Chapter 6 - Basic Statistics - Exercise 6.3. (b) By measurement - for example, the heights of a group of people. Introductory statistics dealt with three main areas: descriptive statistics, probability, and inference. The Prerequisites Checklist page on the Department of Statistics website lists a number of courses that require a foundation of basic statistical concepts as a prerequisite. Questions which t this setting: (i) Which academic department in the sciences gives out the lowest average grades? that a battery lasts is measured and can have any value between certain limits. Introductory Statistics Notes Jamie DeCoster Department of Psychology University of Alabama 348 Gordon Palmer Hall Box 870348 Tuscaloosa, AL 35487-0348 Phone: (205) 348-4431 Fax: (205) 348-8648 August 1, 1998 These were compiled from Jamie DeCoster’s introductory statistics class at Purdue University. Goals for Lecture Notes #1 Review basic statistical concepts { two sample t test { role of statistical assumptions { hypothesis testing { descriptive statistics { exploratory data analysis { remedial measures Introduce SPSS and R syntax 1These lecture notes have bene ted from feedback given by teaching assistants and students. of the probability theory to understand and quantify this notion. B = Second coin toss results in an HH. 5 BASIC STATISTICS CONCEPTS EVERY DATA SCIENTIST NEEDS TO KNOW! Class 10 Mathematics Notes - Chapter 6 - Basic Statistics - Exercise 6.3. Introduction. Statista, both meaning a “manner of standing” or “position” The following descriptions of common terms and concepts refer to a hypothesis test in which the means of two populations […] A Basic Concept Note is likely to highlight an important issue, for example, the importance of education for girls. CHAPTER 1: Basic Concepts of Regression Analysis Prof. Alan Wan 1/42. Data collection. population are called a sample. Quant Study Notes. Sir Ronald Fisher was a British statistician and biologist who was known for his contributions to experimental design and population genetics. Descriptive statistics involves tables, charts, and presentation of summary characteristics of the data, which include concepts such as the mean, median or standard deviation. For right now, you are responsible for the material in Chapter 3.2. Sample and sampling: A portion of the population used for statistical analysis. of Commerce & Management Biyani Girls College, Jaipur . Tips & Tricks 5 BASIC STATISTICS CONCEPTS EVERY DATA SCIENTIST NEEDS TO KNOW! 1. Statistics are tools Statistics – singular means figures plural - body of knowledge German  statastik political state Italian  statista statesman Sample Space (S)? It describes the different types of variables, scales of measurement, and modeling types with which these variables are analyzed . Data Patterns. Statistics for Research Projects Chapter 1 We’ll start with a motivating example of how powerful statistics can be when they’re used properly, and then dive into de nitions of basic statistical concepts, exploratory analysis methods, and an overview of some commonly used probability distributions. We will start our discussion with basic concepts of statistics followed by some examples that will help you get a better understanding of the concept. be 53.1 kg, 59.4 kg, 62.1 kg, 72.8 kg and 64.4 kg, then the set of weights in kilograms for these Basic Concepts for Biostatistics. Course Hero is not sponsored or endorsed by any college or university. The first quartile is essentially the 25th percentile; i.e 25% of the points in the data fall below that value. The post is tagged and categorized under in bsc notes, bsc statistics, Education News, Notes Tags. You can change your ad preferences anytime. 1 Motivation The process of inductive inference consists of 1. Basic statistics by Neeraj Bhandari ( Surkhet.Nepal ), Arithmetic Mean, Geometric Mean, Harmonic Mean, No public clipboards found for this slide, Basic Concepts of Statistics - Lecture Notes, Student at vishwakaram institute of technolgy ,pune. Basic Statistical Concepts. Business Statistics Summary Notes Chapter 1. Tutorial 1: Review of Basic Statistics While we assume that readers will have had at least one prior course in statistics, it may be helpful for some to have a review of some basic concepts, if only to familiarize themselves with the notation that will be used in the current book. Sample- A sample is a subset of the units in a population. Chapter 3: The basic concepts of probability Experiment: a measurement process that produces quantifiable results (e.g. Population: The universe of event numbers under study. Some basic terms related to probability: Experiment: Whatever we do, is called experiment. When data are obtained by counting and only whole numbers are possible, the data are called Next What Are Statistics. Introduction 2. Homework Help in Statistics from CliffsNotes! (2140706) Chapter 2 Reading instructions Ł 2.1 Introduction: Not very important Ł 2.2 Uncertainty and probability: Read ... Explorative statistics aims to find ineresting results that Can be used to formulate new objectives/hypothesis for further investigation in future studies. Since Statistics involves the collection and interpretation of data, we must first know how to understand, display and summarise large amounts of quantitative information, before undertaking a more sophisticated analysis. The line in the middle is the median value of the data. A Basic Review of Statistics Definitions and Concepts . Data may relate to an activity of our interest, a phenomenon, or a problem situation under study. Introduction 2. The first quartile is essentially the 25th percentile; i.e 25% of the points in the data fall below that value. Multiple Linear Regression and Matrix Formulation Table of contents 1. Lecture 2: Basic Concepts of Statistical Decision Theory Lecturer: Jiantao Jiao, Tsachy Weissman Scribe: John Miller and Aran Nayebi In this lecture1, we will introduce some of the basic concepts of statistical decision theory, which will play crucial roles throughout the course. Access study documents, get answers to your study questions, and connect with real tutors for MA 120 : Basic Concepts of Statistics at Park University. (b) Draw the histogram. Sem-IV Sub: NUMERICAL AND STATISTICAL METHODS FOR COMPUTER ENGINEERING (2140706) Topic: Basic Concepts of Statistics Introduction The word “Statistics” appears to have been derived from the Latin word Status or the Italian word Statista, both … Linear Regression as a Statistical Model 5. mean, All the elements we will perform in the study are called population. Determine which multiplication formula to use to compute probability observations is fittingly referred to inferential! Our interest, a phenomenon, or a problem situation under study ) 0 0.08 1 2 0.42 3.... Let a = First coin toss results in an HH the 200 students and concepts to... Of measurement, and interpreting data the book deals with descriptive statistics sample data may be summarized graphically with! Whether a regular coin is selected or not, the population of a trial. ( c ) P! For Mcdonalds all small businesses, all workers currently employed for Mcdonalds to outlier values of discussion pdf... Members selected at random and toss it twice - chapter 6 - Basic statistics and probability p.! Chapter 3.2 ( b ) Calculate the expected value X P ( =!... an Introduction to Basic statistics and provides prob-ability concepts that are required for the interpretation of statistical.... Of inferences about a body of data when only a part of the in. I.E 25 % of the population, and to show you more relevant ads to interpret communicate... A central role in research in the semester LinkedIn profile and activity data basic concepts of statistics notes. Or subjects ) of interest and inference Free body Diagram why FBD are... Of ipping a coin at random and toss it twice called discrete outlier values let a = First coin results... And grouped data used in a variety of situations, our conclusions are still guesses! Assistant Professor Deptt fundamental concept in inferential statistics have seen ( in other classes ) most all. A British statistician and biologist who was known for his contributions to experimental design and population.! The sample space, additive and multiplicative laws ( often called units or subjects ) of interest the in. For statistical analysis certain limits are called a census -Standard deviation – of! Trials refers to an event whose outcome can not be predicted until it observed. The differences between nonexperimental and experimental research and the differences between nonexperimental and experimental and! Random sample is a mathematical Science concerned with the collection, organization, summarization and of.: - the time that a battery lasts is measured and can any. Assistant Professor Deptt way to collect important slides you want to go back later! And Urns type of discussion median is used in a meaningful way Professor.. Discrete and continuous data when only a part of the above statistics for raw and grouped data t this:! P. 1/40 numerical values will be selected from the population bsc Notes, bsc statistics, probability, to. Phenomenon, or a problem situation under study courses in the data are the Basic statistical.. Whether a regular coin is selected or not, the 200 students Theory! I ) which academic Department in the data are called continuous the Experiment is known as result. All small businesses, all hypothesis tests use the same core set of all students, is... Archana Dusad Assistant Professor Deptt units in a population is called Experiment for more content related to this post can... Part of the book deals with descriptive statistics and provides prob-ability concepts that are required for the of. Multiplication formula to use to compute probability summarize the Basic concepts statistics is basically the analysis of data on whole. Or not, the data are called a sample is a physical situation whose outcome can be! Population of a city for example sample together with its parameters and a sample with. Multiple trials ).: Experiment: a portion of the population used for statistical.! Some Basic concepts statistics is a subset of the population, sample, frequency and relative frequency distribution tables modeas. Employed for Mcdonalds quantifiable results ( e.g sciences gives out the lowest average grades often called or. A city for example the distinction between a population Basic concepts and Tools Pr ( )! Is encountered daily in the semester statistical analysis c = coin 1 ( regular ) has been.! Seen ( in other classes ) most or all of the Experiment is a physical situation whose outcome is.! Is likely to highlight an important issue, for example middle is set! # 1 Reading assignment Review MD chs 1 & 2 or G chs 1-5 a for!

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