Find (and hand in) a newspaper article or Internet report about a study that involves just a single categorical variable. Besides providing a copy of the article or report, tell how the data were produced (experiment, observational study, or sample survey). Tell if the variable is summarized with counts, percents, or both. Tell if results are being reported for a sample or for an entire population, and report the number of individuals studied, if known. Tell if there is reason to suspect bias that arises if the sample is not representative, or bias in the design for assessing the variable's values.