Quantitative data's description ca only be described in numbers If the data are quantitative they must have a median If there is no median it is only because the data are qualitative and, in that case, a box and whiskers plot is meaningless. Classify each of the following by type of data (qualitative or quantitative) and level of measurement (nominal, ordinal, interval, ratio) For quantitative data, classify as discrete or continuous. Data at the ordinal level are not only quantitative but can also be qualitative
Meaningful differences can be calculated for data at the interval level Data at the nominal level allow for basic calculations, while data at the ratio level can be ordered and have meaningful ratios between values. Quantitative data consist of numerical measurements or counts They are nominal, ordinal, interval, and ratio.
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