10-3-08 - Psychology 206 Class Notes 10/3/08 Exercise #12...

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Psychology 206 – Class Notes – 10/3/08 Exercise #12 – DUE BY 5 P.M FOR MONDAY: Read chapter #8 Read chapter #9 Do exercise #12 and #13 Check out Exercise 12 Table 1 Years of Service Rel. f 0.0667s 0.0000 0.1333 0.000 Be sure to add another class interval to close the polygon and include an interval at the beginning that allows you to start at (0-4) Central Tendency Variability Where is the middle? How spread out? (typical) (differences) Mean Median Mode Variance (and standard deviation) Inter-quartile range (IQR) Range You want to describe your statistics: They should include measures of central tendency and variability M = APA format for Mean SD = APA format for Standard Deviation Mode – The most frequent score Major Mode Greatest frequency Minor mode Second greatest frequency Range – Lowest score to highest score
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Inter-quartile range (IQR) – Data: 118 118 115 Q3 (3 rd quartile) cuts off the bottom 3 quarters 75 th percentile 112 110 109 Q2 (2 nd quartile) Cuts off the bottom two quarters
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This note was uploaded on 06/03/2009 for the course PSYCH 206 taught by Professor Kenney-benson during the Fall '07 term at Allegheny.

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10-3-08 - Psychology 206 Class Notes 10/3/08 Exercise #12...

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