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11 Pages

### Intro_mod1

Course: STATS 250, Spring 2011
School: Michigan
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Word Count: 374

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Introductions Agenda l l Syllabus l Review l Module l iClicker 1 About Me l l l l l 3rd Year PhD Student, Statistics BS in Math from the University of Rochester Email: tommybro@umich.edu Hobbies: Electric Violin and Weightlifting Halloween 2007: l WaLuigi About You l Name l Preferred l Year l Something l Name interesting about you Pets? Play an instrument? Favorite food?.... Highlights from the syllabus l...

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Coursehero >> Michigan >> Michigan >> STATS 250

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Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
Introductions Agenda l l Syllabus l Review l Module l iClicker 1 About Me l l l l l 3rd Year PhD Student, Statistics BS in Math from the University of Rochester Email: tommybro@umich.edu Hobbies: Electric Violin and Weightlifting Halloween 2007: l WaLuigi About You l Name l Preferred l Year l Something l Name interesting about you Pets? Play an instrument? Favorite food?.... Highlights from the syllabus l Feel l free to contact me: tommybro@umich.edu l Be l l l l sure you understand: The grading policy Participation The homework policy The lab attendance policy Types of Variables l Categorical l l Category values (gender, year in school) Graphs l Bar chart l Quantitative l l Numerical values (age, income) Graphs l l Histogram Boxplot Quantitative Variables l The l l l l distribution is often described by its shape. Some words we use include: Bell-shaped Uniform Skewed Bimodal Quantitative Variables l Numerical summaries (when appropriate) of a set of quantitative data describes either the location or the spread of the data. l Location is described by: l l Mean: The arithmetic of average the members of the data set Median: The middle values of the data, when arranged from smallest to largest Quantitative Variables l The l l spread of the data is shown by: The range: the highest value minus the lowest value. The Interquartile range: Q3-Q1 l l Q3=the third quartile, or 75th percentile. Q1=the first quartile, or 25th percentile. l The median, quartiles, and extremes (min, max) are often shown together in a five number summary. Graphs l Boxplots l l Graph of 5-number summary Tells about outliers Graph of frequency of values Tells about shape of distribution l l l Histograms l l Symmetry Modality Module 1: Activity 1 l Visualizing l and Exploring a Data Set ctools stats 350 o resources lab info Data Sets for Lab and HW employee data.sav l Save to desktop l Programs A Math and Statistics l PASW 17.0 Or SPSS 16.0 l l Open an existing data source Employee.sav data set Module 1: Activity 2 l The l l Mean and the Median http://onlinestatbook.com/stat_sim/descriptive/ind ex.html Ctools->250 Fall->lab info->applets for modules-> module 1 activity 2
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