STAB22H3 Chapter Notes - Chapter 3: Interquartile Range, Central Tendency, Standard Deviation
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STAB22H3 Full Course Notes
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3. 1: graphical displays of information, histograms and bin width, types of data distribution, symmetric, skewed. Pearson"s index: determining normality, pearson"s index, iqr (interquartile range, reasons for outliers, outliers in normal distribution. 3. 2: measures of central tendency, mean, median, mode, weighted mean, range and interquartile range, measuring central tendency in the presence of outliers. 3. 3: measures of spread, iqr, variance, standard deviation, population (n or x, sample (n-1 or sx, chebyshev"s theorem. 3. 4: normal distribution, properties of a graph displaying normal distribution, names for a curve that displays normal distribution, the 68-95-99. 7 percent rule (expect a proof of either stage, normal distribution graphs, using x ~ n ( , 2) 3. 5: z-scores, using the z-score table, percentages under the curve => intervals (normal cdf command, percentiles. 3. 6: mathematical indices: calculations and analyses, example: bmi, batting average and slugging percentage. Red: not in the textbook, not on the exam, but on this test.
