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Measures of Central Tendency and Measures of Dispersion Measures of Central Tendency The aritmetic mean 1. on population: 2. on sample: The geometric mean (G) The ...

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A single value that seeks to represent a collection of data by defining the central location within that set of data is referred to as a measure of central tendency. As a result, core inclination indicators are sometimes known as central position measures.

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Measures of Central Tendencies Week # 2 * Definitions Mean: or average The sum of a set of data divided by the number of data. (Do not round your answer unless ...

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Measures of Central Tendency

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Measures of Central Tendency Greg C Elvers, Ph.D. Measures of Central Tendency A measure of central tendency is a descriptive statistic that describes the average, or ...

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Title: PowerPoint Presentation Last modified by: intel Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show (4:3) Other titles

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Appropriate Measures of Central Tendency Nominal variables Mode Ordinal variables Median Interval level variables Mean

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Measures of Central Tendency to be or not to be Normal TOPICS Normal Distributions Skewness & Kurtosis Normal Curves and Probability Z- scores Confidence ...

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Measures of Central Tendency and Dispresion

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Formula for the Mdn when scores are cumulated from above Xul = real upper limit of class interval containing the median fa = number of scores above Xul ...

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Warm Up Lesson Presentation Lesson Quiz Holt Algebra 2 Holt McDougal Algebra 2 Measures of Central Tendency and Variation Holt McDougal Algebra 2 Measures of Central ...

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Warm Up Lesson Presentation Lesson Quiz Holt Algebra 2 Holt McDougal Algebra 2 Measures of Central Tendency and Variation

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Measures of Central Tendency (MCT) Describe how MCT describe data Explain mean, median & mode Explain sample means Explain deviations around mean

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Title: Author: localuser Last modified by: localuser Created Date: 10/19/2004 7:11:13 AM Document presentation format

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Measures of Central Tendency and Dispersion MM1D4: Students will explore variability of data by determining the mean absolute deviation (The average of the absolute ...

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Central Tendency = values that summarize/ represent the majority of scores in a distribution ... Three main measures of central tendency: Mean ( = Sample Mean; ...

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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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Measures of Central Tendency and Range Choosing Measures of Central Tendency or Range to Describe a Set of Data and Justifying the Choice for a Particular Situation ...

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Measures of Central Tendency Glenn C. Jones Middle School Vocabulary Mean: the sum of numbers in a set of data divided by the number of pieces of data Median: the ...

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Title: Mean, Median, Mode and Range Author: User Last modified by: Sharonda Dugger Created Date: 3/1/2004 5:42:33 AM Document presentation format

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Measures of Central Tendency Measures of Central Tendency Central Tendency = values that summarize/ represent the majority of scores in a distribution Three main ...

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Unit 4 Measures of Central Tendency, Dispersion, IQR and standard deviation Day 93 * How do we describe data using statistical measures?

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To find the average, add up all of the numbers and divide by the ... Joey got a 75, 68, 70, and 87 on his Social Studies tests. What was his average? 75 b. ...

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The following scores were given on a test: 85, 79, 95, 86, 72, ... Make a box and whisker for the following test scores: 52, 64, 72, 75, 80, 88, 90, 90, 95, 98 ...

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Optimality properties for measures of central tendency Two notions of ' ... Example: The Nova Scotia Albino Alligator Handbag Factory. Sensitivity to Outliers ...

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Title: Slide 1 Author: V-20-MUL-124 Last modified by: admin Created Date: 8/16/2006 12:00:00 AM Document presentation format: On-screen Show (4:3) Other titles

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They can accurately estimate population parameters using sample statistics. ... are testing for differences with variables at the nominal or ordinal level, the ...

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Let's take this situation: Jake, Sarah, and Destiny have some cookies. ... Jake Sarah Destiny. Students can learn to relate this to the basic fact of 4 x 3 = 12 ...

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Measures of Central Tendency What is a measure of central tendency? Measures of Central Tendency Mode Median Mean Shape of the Distribution Considerations for ...

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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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Example 1: Find the mean, median, mode, and range for each set of data. ... showing the number of letters in the last names of all the student in the class. ...

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Sort the data into size order. Find the middle one or middle pair. The median ... Halved. Increased by 100. Decreased by a fifth. Every (X) changed to (2X 5) ...

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Levin, J. & Fox, J. A. (2006) ... Walsh, A. & Ollenburger, J. C. (2001). Essential Statistics for the Social and Behavioral Sciences: A Conceptual Approach. ...

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Mid - height. Height. On your Calculator ... We would describe this as being bimodal, trimodal, etc. The calculator does not do this for you ...

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Creator: Mary Anne Burton ... Create a realistic story to represent the data. Examples: Number of TV. Money. Time ... How well does the mean represent the new data? ...

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Tell us what the typical score is in a distribution of scores. ... one score occurs at frequencies distinctively higher than other scores, in which ...

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Median middle number, order from least to greatest & find middle number ... hypotenuse. leg. leg. a b = c . 3 4 = 5 . a b = c . 5 12 = 13 ...

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... tendency when data are not ordered like the colors of cars in a parking lot. For colors of cars ... Compare Variability to Mean. Note that both are averages. ...

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Allows you to see how a set of date changes over time. Can only be used when data are continuous ... Test Scores. Mean 'Average' Add up all the scores. Divide ...

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... holds the all-time record in professional football for throwing touchdown passes. ... scores on the first four exams in a class are 73, 67, 83, and 81, what ...

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1) Mean: It's the most important value used to describe center. ... 10-90 percentile range = p90-p10. Exploratory Data Analysis ...

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... from the mean as the influence the point exerts on the tilt of the teeter totter. ... That is why the teeter totter is in balance when the fulcrum is at the mean. ...

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... more diverse, i.e. is more spread out around the measure of central ... Each of the statements about the spread of the distribution imply that one group ...

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Title: Measures of Central Tendency Author: sosterwise Last modified by: jlong7 Created Date: 12/7/2006 2:04:19 PM Document presentation format: On-screen Show

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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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Distributions of numbers can be summarized with numbers (called statistics or parameters). ... Why is it misleading to say that the average person has 1.2 brothers?

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Central Tendency Mon. Feb 16th, 2004 Central Tendency One number that summarizes an entire distribution. 3 measures of central tendency: Mean arithmetic average ...

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Central Tendency and Variability The two most essential features of a distribution Questions Define Mean Median Mode What is the effect of distribution shape on ...

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Title: Measures of Central Tendency Author: Kay H. Chu Last modified by *** Created Date: 9/30/2002 3:02:10 PM Document presentation format:

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The mean of a data set is the sum of the observations divided by the ... A mode may also be meaningfully obtained. Anthony J Greene. 5. Mean, Median and Mode ...

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and therefore it is a valuable measure of central tendency when such values occur) ... Which central tendency measure you can use depends on the level of measurement ...

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FOR MORE CLASSES VISIT www.tutorialoutlet.com name method used to measure central tendency used in data presentation. calculate arithmetic mean for the raw data. grouped and un-group data below. x=3,4,5,6,7,8 f=4,3,2,5,1,5. in that order for ungrouped data.

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