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STAT 1770 (14)
Lecture

Sept 16.docx

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Department
Statistics
Course
STAT 1770
Professor
John Sheriff
Semester
Fall

Description
Sept 16, 2013 Chapter 3, Sec 1­4, pages 43­54, 57­66 Graphing Quantitive Data • Histogram o Essentially just graphical  display of the (binned)  frequency table o Divide the range of data into  intervals (bins)  Record the number of  observations (count,  frequency)  Or the proportion of the  total observations  (relative frequency) in  each interval • Frequency (or relative frequency),  determine the height of the rectangles  in the histogram o Typical rollercoaster ahs top speed of between 60­70 o Top speeds range between 40­100 mph Distribution of a variable
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