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abrown@astate.edu. Frequency Distribution Dr. Wajed Hatamleh 1-* Dr. Wajed Hatamleh week 2

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Title: No Slide Title Author: Graham Hole Last modified by: Graham Hole Created Date: 3/22/2001 9:24:22 AM Document presentation format: On-screen Show (4:3)

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Table or graph that lets you quickly and easily see how many responses of a ... Why do we care? Lets you quickly and easily see if you have invalid values ...

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Frequency distributions and graphing data: Levels of Measurement Frequency distributions Graphing data Stages in scientific investigation: Obtain your data: Usually ...

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Distributions & Graphs Variable Types Discrete (nominal) Sex, race, football numbers Continuous (interval, ratio) Temperature, Test score, Reaction time Frequency ...

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A random sample of the lifetime (in years) after a kidney transplant. ... In an ungrouped frequency distribution, each class consists of a single value. ...

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Section 3.1 1. (a) In Class Exercise #3 from Section 1.1, the worksheet Ungrouped in the Excel file Describe_Data was created to display a frequency distribution for ...

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Measures of Central Tendency for Ungrouped Data Section 3.1 Mean Mean = Sum of all Values Number of Values Mean from a sample is x = x/n Mean from population is ...

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Platykurtic When the kurtosis 0, the frequencies throughout the curve are ... Thus, negative kurtosis indicates a relatively flat distribution ...

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Research Methods: 2 M.Sc. Physiotherapy/Podiatry/Pain Frequency/Probability Polygons, and the Normal Distribution Part one: Frequency Tables Un-grouped Tally ...

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Second, it affords a basis of comparison between two or more frequency distributions. ... bears its importance from the fact that various distributions may have ...

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Frequency distributions are listings of the number of cases in each attribute of a variable ... Median reflects the attribute that cuts the distribution in half ...

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OGIVES ... Construction of ogive - compute the cumulative frequency. distribution ... OGIVES. WHAT WE GET FROM OGIVE ? MEDIAN SPEED = P50. STANDARD DEVIATION ...

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A table that displays all the possible values for this variable along ... Cumulative Frequency Distribution (also called an Ogive curve) For Friday... Practice ...

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... data, interpret its frequency distribution, pie chart, and bar chart. ... Pie Chart. A pie chart is a circle that is divided into sections according to the ...

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Basic Statistics
- Basic Statistics Measures of Central Tendency Positively Skewed Distribution Mode

Basic Statistics Measures of Central Tendency Positively Skewed Distribution Mode

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Statistics is the field of study which concerns itself with ... Y Axis (Ordinate) = vertical axis. Represents frequency of occurrence. Represents score value ...

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Statistics: A Gentle Introduction By Frederick L. Coolidge, Ph.D. Sage Publications Chapter 2 Descriptive Statistics: Understanding Distributions of Numbers

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Any relationships that you have created with GAD are remembered. ... Box & Whisker Plots. Dot Frequency Diagrams. Histograms. Back-to-back Histograms. Scattergraphs ...

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L1 = Lower boundary of modal class. ?1 = difference of frequency between ... modal class and class after. H = class interval ... class after modal class ...

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A Parameter is a measurable characteristic of a population. The Kiers family owns four cars. ... You can build a Frequency Table using the COUNTIF function in Excel. ...

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a table in which measurements are tallied ... the tally column. the corresponding frequencies. Used for both quantitative & qualitative data ...

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An insurance company researcher conducted a survey on the number of car thefts ... back (mixture) stem and leaf plot and compare the distribution of the two groups. ...

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When to Create Groups. Grouping is a convenience that makes it easier ... Obtain the fraction by dividing the frequency for each group by the total frequency ...

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Understand the advantage and disadvantage of each type of average ... to be able to use the cumulative frequency ogive to find the interquartile range ...

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... which relates to the number of hours of overtime worked in a particular week ... Median: divides a distribution exactly in half. Median = the value of X(n 1)/2 ...

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S hape unimodal, bimodal, symmetric, skewed ( or ... When distributions are unimodal and symmetric, a Normal model may be useful ...

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Title: INTRODUCTION TO BIOSTATISTICS Author: Dr.S.Shaffi Ahamed Last modified by: SFAFFI AHMED Created Date: 2/10/2004 7:50:46 AM Document presentation format

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Title: Intro to Statistics Author: T. Gayle Yamazaki Last modified by: socphi Created Date: 1/24/2005 4:38:36 AM Document presentation format: On-screen Show (4:3)

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Compaq Other titles: Arial Times New Roman Trebuchet MS Wingdings 3 Clarendon Condensed Wingdings Papyrus Wingdings 2 Tahoma System Courier New Default Design ...

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CENTRAL TENDENCY Mean, Median, and Mode OVERVIEW The general purpose of descriptive statistical methods is to organize and summarize a set score Perhaps the most ...

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Measures of Central Tendency

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Sampling and Basic Descriptive Statistics. Basic concepts and Techniques. Lecture 6 Leah Wild Overview Sampling In Quantitative Research Basic Descriptive Statistics ...

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Title: The Mode Author: Joanna Gorin Last modified by: Matt Bitter Created Date: 2/12/2003 8:31:24 PM Document presentation format: On-screen Show Company

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Statistics: A Gentle Introduction By Frederick L. Coolidge, Ph.D. Sage Publications Chapter 1 A Gentle Introduction Chapter 1*

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Title: BASIC CONCEPTS OF PROBABILITY Author: masine Last modified by: Sha'ri Mohd Yusof Created Date: 12/1/2003 8:10:29 AM Document presentation format

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Kurtosis - peakedness. First step. Exploratory analysis to ... Kurtosis ( 2) = (xi- )4 / n. 4 Note: if sample, 'n' should be 'n -1' and ' ' is replaced by 'g' ...

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DATA. A collection of observations from a survey or an experiment. How long. How fast ... Each observation should be included in only one class. ...

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Variable a characteristic or property that can take on different values. ... How many people show a characteristic, have a given value or are members of a category. ...

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A Picture is Worth 1000 Words (or Numbers) Bar Graphs. Histograms. Stem ... Compute the variance and then take the square root ... Definitions: Standard Scores ...

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Charts and Graphs Chapter 2 MSIS 111 Prof. Nick Dedeke Objectives Understanding data presentation Discrete versus continuous data Differentiate between grouped and ...

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PSY 307 Statistics for the Behavioral Sciences Chapter 2 Describing Data with Tables and Graphs The Best Graph Ever Drawn Source: http://strangemaps.wordpress ...

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A TV host turns to the main camera and with a serious, ... What, You're a Scorpio too ? That's amazing !! WOW ... Has the characteristics of the population ...

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Ordinal - rank observations in terms of size or magnitude (Scale of Life Stress, US News and World Report's college rankings, Moh's hardness scale) ...

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Stat 281: Ch. 2--Presenting Data An engineer, consultant and statistician were driving down a steep mountain road. Suddenly, the brakes failed and the car careened ...

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Welcome to Chapter 3 MBA 541 BENEDICTINE UNIVERSITY Data Measures and Displays Describing Data: Numerical Measures Chapter 3

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... must be manipulated in some fashion to make them more informative. ... Check out this demo which clearly shows how the width of the bin that you select ...

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Data, Tables and Graphs ... Gender of Sample Pictorial representations Pie charts Bar charts Displaying two variables in a table Crosstabs Race and gender, ...

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Academic major. Academic degree. Qualitative Data. Qualitative Data: ... Differences in degree. Classification. ORDER. Ordinal. Gender. Political preference ...

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Algonquin College - Jan Ladas. 1. Community Dental Health. Review. Algonquin College - Jan Ladas ... e.g.: marital status, car colour, occupation (attributes) ...

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Two basic descriptive statistics for the ... Find Z scores for grouped data on Pres. Obama's handling of the global war on terror, where Mean = 3.30 and N = 158 ...

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Standard deviation: 10.85 inches. Minimum: 36 inches. Maximum: 78 inches. First quartile: 51.63 inches. Third quartile: 67.38 inches ... Denoted by 'x tilde' ...

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Title: Review of key biostatistical concepts relevant to EBM Author: Haroon Saloojee Last modified by: Wits-Admin Created Date: 7/11/2004 8:23:31 PM

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Title: Slide 1 Author: unc Last modified by: UNC Created Date: 1/4/2006 4:35:49 PM Document presentation format: On-screen Show Company: unc Other titles

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Standard deviation. It measures difference from the mean ... See formula sheet for Standard Deviation formula. x (x-x) (x-x)2. 10 -9.6 92.16. 22 2.4 5.76 ...

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21 Measures of Dispersion Case Study 21.1 Range and Inter-quartile Range 21.2 Box-and-whisker Diagrams 21.3 Standard Deviation 21.4 Applications of Standard Deviation

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