'Lower class boundary' diaporamas de présentation

Chapter 2

Chapter 2. Descriptive Statistics. Chapter Outline. 2.1 Frequency Distributions and Their Graphs 2.2 More Graphs and Displays 2.3 Measures of Central Tendency 2.4 Measures of Variation 2.5 Measures of Position. Section 2.1. Frequency Distributions and Their Graphs.

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MTH 161: Introduction To Statistics

MTH 161: Introduction To Statistics. Lecture 09 Dr. MUMTAZ AHMED. Review of Previous Lecture. In last lecture we discussed: Measures of Central Tendency Weighted Mean Combined Mean Merits and demerits of Arithmetic Mean Median Median for Ungrouped Data. Objectives of Current Lecture.

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Certified Quality Engineer Programme (CQE)

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S1: Chapters 2-3 Data: Location and Spread

S1: Chapters 2-3 Data: Location and Spread. Dr J Frost (jfrost@tiffin.kingston.sch.uk) . Last modified: 20 th September 2013. Types of variables. In statistics, we can use a variable to represent some quantity, e.g. height, age.

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Displaying Statistical Information

Displaying Statistical Information Statistical Information may be displayed: As a table As a chart As a graph Frequency Table Pie Chart Histogram Frequency Distribution Graph Cumulative Frequency Distribution Graph Constructing a Frequency Table

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Displaying Statistical Information

Displaying Statistical Information. Statistical Information may be displayed:. As a table As a chart As a graph. Frequency Table. Pie Chart Histogram. Frequency Distribution Graph Cumulative Frequency Distribution Graph. Constructing a Frequency Table.

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Unit 2

Unit 2. Section 2-3. 2-3: Histograms, Frequency Polygons, and Ogives. Graphs are used to present data after it has been organized into frequency distributions. The purpose of a graphs in statistics is to display data in pictorial form. The three most commonly used graphs are: Histograms

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Objectives

Objectives. Recognise types of data Construct stem and leaf diagrams Understand grouped frequency distributions Construct cumulative frequency polygons. Types of Data. Qualitative. Quantitative. Height. Town of birth. Age. Eye colour. Types of Data. Continuous. Discrete.

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