Central tendency and variation
[DOC File]Measures of Central Tendency, or more simply measures of ...
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Measures of central tendency provide only a partial description of a quantitative data set. The description is incomplete without a measure of the variability, or spread, of the data set. For example, consider the following three data sets, which contain tests scores for students in three different classes.
[DOCX File]www.sd27j.org
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Objective(s): Find measures of central tendency and measures of variation for statistical data.: Examine the effects of outliers on statistical data. Vocabulary. Expected value. Probability distribution. Variance. Standard deviation. Outlier. Recall that the . mean, median, and . mode . are measures of central tendency—values that describe ...
[DOCX File]Activity 3.5 Applied Statistics
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In this activity you will collect data and then perform statistical analyses to determine measures of central tendency and variation of the data. You will also represent the data using a histogram. Equipment. Engineering notebook. Pencil. Dial caliper. Procedure
[DOC File]Quantitative Variation - BioQUEST
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measures of central tendency; and, ways of describing the . distribution of values. around these measures of centrality. In this lab we will measure the extent of variation in a natural population within and among groups using the common sunflower (Helianthus annus) seed as the subject of our investigation.
[DOCX File]www.longbranch.k12.nj.us
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Chapter 3 Quiz 1 – Measures of Central Tendency and Measures of Variation. Determine whether each statement is true or false. If the statement is false, explain why. When the mean is computed for individual data, all values in the data set are used. The mean cannot be found for …
Statistics - Houston Community College
: MATH 1342 Statistics. Topics include histograms, measures of central tendency and variation, probability, binomial and normal distributions, and their applications, confidence intervals, and tests of statistical hypotheses. 3 credit (3 lecture). Course Intent
[DOC File]STATISTICS - John Uebersax
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The median is a measure of central tendency more resistant to the effects of extreme values. The median is the value that occupies the middle position of data when data are put in rank order by magnitude. Let n be the number of cases in your data. If n is . odd, the median is the middle number of the data values sorted by magnitude.
[DOCX File]Measures of Position
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In addition to the measures of central tendency and variation which we’ve already discussed, there is a third kind: measures of position. They fall into two categories depending on whether the measure of central tendency being used is the median or the mean. Median, Quartiles, and Percentiles
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