HSS 2381 Chapter Notes - Chapter 2: Frequency Distribution, Skewness, Kurtosis

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 2381
• Professor: Eleanor Riesen

Document Summary

List each data value in a sequence ascending order - (cid:1005), (cid:1006), (cid:1007), (cid:1008), (cid:1009) . Chapter 2: frequency distributions: tabulating & displaying data . A frequency distribution is a systematic arrangement of data values, with a count of how many times each value occurred in a dataset. Constructing a frequency distribution: tally each occurrence of the value, total the frequencies for each value (f , the sum of f s for all data values must equal the sample size: f = n. Elements of a typical frequency distribution: data values, absolute frequencies (counts, relative frequencies (percentages, cumulative relative frequencies (percentage for given score value, combined with percentages for all preceding values) Frequency distributions and measurement levels: frequency distributions can be constructed for variables measured at any level of measurement, but for categorical (nominal-level) variables, cumulative frequencies do not make sense.