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Lecture 11

Psych lecture 11 October 17th.docx

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Department
Psychology
Course
Psychology 1000
Professor
Dr.Mike
Semester
Winter

Description
th Psych lecture 11 October 17 2013 • Distributions • Central tendency • Variability • How do stats help us understand data? • How do you calculate measures of central tendency (have to calculate on exam) • What does the variance mean? Next time: Review chapters 1-4 + appendix Next Week: Sensation (158-166) STATISTICS • The numbers given out in statists are called “distribution” • Frequency distribution tells us how many people get a particular score To find the mean: add up all the numbers and divide by the amount there are. To find the median (MDN): midpoint of a ranked distribution To find the mode: the number that appears the most often The Range is the difference between the highest and lowest score • This can be influenced by extreme scores (outliers) • Same
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