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The Nature of Probability and Statistics
Chapter 1 The Nature of Probability and Statistics
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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
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Introduction Statistics is the science of conducting studies to
collect, organize, summarize, analyze, and draw conclusions from data. Bluman Chapter 1
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Inferential and Descriptive Statistics
Section 1-1 Inferential and Descriptive Statistics
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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: Any variable whose value is determined by chance.
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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.
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Objective 2: Two Branches of Statistics
Descriptive Inferential
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Objective 2: Two Branches of Statistics
Descriptive Statistics consists of: the collection, organization, summarization, and presentation of data. Inferential Statistics consists of: 1. generalizing from samples to populations 2. performing estimations and hypothesis tests. 3. determining relationships among variables 4. making predictions.
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The Oregonian 9/9/2010
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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.
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On your own Read section 1.1 Do Applying concepts on page 5
Due next time class meets. Bluman Chapter 1
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