Exam1Review - Review for Exam I Stat 205: Statistics for...

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Review for Exam I Stat 205: Statistics for the Life Sciences Tim Hanson, Ph.D. University of South Carolina T. Hanson (USC) Stat 205: Statistics for the Life Sciences 1 / 12
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Exam I Logistics Logistics. .. * Thursday, February 17, 3:30–4:45. * Open book. Bring a calculator. * Problems will be patterned after homework problems. * Be on time . * Note that scanned pages from the textbook’s solutions manual are posted on the course website. Also quiz solutions. * Each of exams I, II, and III are worth 20%. Your quizzes are worth 40%. T. Hanson (USC) Stat 205: Statistics for the Life Sciences 2 / 12
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Exam I Chapter 2: Summarizing data 2.2, 2.3: Histograms, distributions, skew and modality * Have data y 1 , y 2 ,..., y n ; want to describe it with pictures and numerical summaries. * If data categorical, can make a bar chart (like a histogram) or a pie chart. Can table frequency of data value occurrences in a table. * Continuous data can be displayed in a histogram defined by bins. Again, need a table of frequency values for occurrences within each bin. * Histogram shape: unimodal, bimodal, multimodal. * Histogram skew: left skew, right skew, symmetry. * HW 2.4, 2.7, 2.8, 2.10 (also describe the shape of the histograms in terms of skew and modality). T. Hanson (USC) Stat 205: Statistics for the Life Sciences 3 / 12
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Exam I Chapter 2: Summarizing data 2.4, 2.5, 2.6: Descriptive statistics: mean, median, quartiles, 5 number summary, IQR, boxplots, outliers. * Mean ¯
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Exam1Review - Review for Exam I Stat 205: Statistics for...

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