'2nd quartile' diaporamas de présentation

10.2 Analyzing Data

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BIOL2608 Biometrics 2011-2012 Computer lab session II

BIOL2608 Biometrics 2011-2012 Computer lab session II. Basic concepts in statistics. Measures of central tendency. Also known as measure of location Indicates the location of the pop n /sample along the measurement scale Useful for describing and comparing pop n.

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Notes for the 1 st grading period

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Why statisticians were created

Why statisticians were created . Measure of dispersion FETP India. Competency to be gained from this lecture. Calculate a measure of variation that is adapted to the sample studied. Key issues. Range Inter-quartile variation Standard deviation.

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Boxplots

Boxplots. Boxplots & the 5 # Summary. To construct a boxplot, first obtain the 5 number summary { Min , Q 1 , M , Q 3 , Max } Q 1 : 1 st quartile = 25 th percentile M = Q 2 : median = 2 nd quartile = 50 th percentile

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