statis Ch01-FU

# statis Ch01-FU - PROBABILITY & STATISTICS Introduction Data...

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Introduction Data Data Collection Errors Statistical Thinking 1/25 20/03/12 Department of Mathematics Learning objectives 1-1 Review and Preview 1-2 Statistical Thinking 1-3 Types of Data 1-4 Critical Thinking 1-5 Collecting Sample Data 1-6 Excel 1-1 Review and Preview 1-2 Statistical Thinking 1-3 Types of Data 1-4 Critical Thinking 1-5 Collecting Sample Data 1-6 Excel Chapter 1: Introduction to Statistics Chapter 1: Introduction to Statistics

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Introduction Data Data Collection Errors Statistical Thinking 2/25 20/03/12 Department of Mathematics WHAT IS STATISTICS The science of collecting, organizing, analyzing, and interpreting DATA in order to make decisions. What is Statistics What is Statistics Descriptive Statistics: Involves organizing, summarizing, and displaying data. e.g. Tables, charts, averages Inferential Statistics Involves using sample data to draw conclusions about a population. Introduction
Introduction Data Data Collection Errors Statistical Thinking 3/25 20/03/12 Department of Mathematics WHAT IS STATISTICS the complete collection of all individuals to be studied. the collection is complete in the sense that it includes all of the individuals to be studied Census Census Population Population Sample Sample Sub-collection of members selected from a population Collection of data from every member of a population Introduction

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Introduction Data Data Collection Errors Statistical Thinking 4/25 20/03/12 Department of Mathematics WHAT IS DATA Consist of information coming from observations, counts, measurements, or responses. What is data What is data a numerical measurement describing some characteristic of a sample . Statistic Statistic a numerical measurement describing some characteristic of a population . Parameter Parameter Data
Introduction Data Data Collection Errors Statistical Thinking 5/25 20/03/12 Department of Mathematics WHAT IS DATA Type of data Type of data Qualitative Data Major Place of birth Quantitative data Age Temperature Discrete Continuous Data

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Data Data Collection Errors Statistical Thinking 6/25 20/03/12 Department of Mathematics WHAT IS DATA Another way to classify data is to use levels of measurement. Levels of Measurement Levels of Measurement 1. Nominal: data consist of names, labels, or categories only, and the data cannot be arranged in an ordering scheme (such as low to high). Example: yes, no, undecided.
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## This note was uploaded on 03/20/2012 for the course STAT 101 taught by Professor Kelly during the Two '12 term at Royal Melbourne Institute of Technology.

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statis Ch01-FU - PROBABILITY & STATISTICS Introduction Data...

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