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Lecture

CMN 3102- Lecture #3.docx

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Department
Communication
Course
CMN3102
Professor
Ivan Katchanovski
Semester
Winter

Description
CMN 3102: Lecture #3 Jan 21 2014  Ideas: Attendance in lectures, dgds, tutorials and how this affects grade performance.  The cost of education­ too high/ too low? Is this justified?  What are the differences in perceptions towards Internet banking security between adolescents and adults? Variables: perceptions towards internet banking security  Groups: adolescents, adults  Lab assignment: posted on blackboard Descriptive Statistics  Describes data  Summarizes data  Frequency distribution  Measures of central tendency  Mode  Median  Mean  Measures of variability/dispersion  Range Standard deviation  Variance  Frequency distribution: percentage distribution of the variable of interest  Tables of charts that summarize the distribution of a variable  Frequency tables  Can be used for all types of variables  Valid percent  Examples Frequeny Graphs//Charts  Graphs charts can be used illustrate frequenct distributions  Bar charts  Pie charts  Line charts  Histograms  Measures of Central Tendency:  The mode: value that occurs most frequently  Nominal variables, ordinal, and interval/ratio variables  The median: middle Value  Ordinal and i
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