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Chapter 1. The Nature of Probability and Statistics. Chapter 1 Overview. Introduction 1-1 Descriptive and Inferential Statistics 1-2 Variables and Types of Data 1-3 Data Collection & Sampling Techniques 1-4 Observational and Experimental Studies
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Chapter 1 The Nature of Probability and Statistics
Chapter 1 Overview Introduction 1-1 Descriptive and Inferential Statistics 1-2 Variables and Types of Data 1-3 Data Collection & Sampling Techniques 1-4 Observational and Experimental Studies 1-5 Uses and Misuses of Statistics 1-6 Computers and Calculators Bluman Chapter 1
Introduction • Statisticsis the science of conducting studies to collect, organize, summarize, analyze, and draw conclusions from data. Bluman Chapter 1
Section 1-1 Inferential and Descriptive Statistics
Objective 1: knowledge of statistical terms • A variable is a characteristic or attribute that can assume different values. • The values that a variable can assume are called data. • Random variable: Anyvariable whose value is determined by chance.
Objective 1: knowledge of statistical terms • A collection of data values forms a data set. • Each value in the data set is called a data value or datum.
More terms to know • A Population consists of all subjects ( human or otherwise) that are being studied. • A Sample is a group of subjects from a population.
On your own • Read section 1.1 • Do Applying concepts on page 5 • Due next time class meets. Bluman Chapter 1