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quantitative = numbers qualitative = not numbers (e.g. gender, state, ...)
Quantitative comes from the word "quantity" meaning an exact amount. A quantitative variable, or answer, is one where an exact numerical value is expected, such as, Liz has 4 dogs. 4 is the quantitative value. Contrast this with qualitative, where an amount is given but without exact numbers. i.e. Liz has MORE dogs than Sue. * * * * * Or even Liz has Labradors, while her parents have Great Danes.
Answer this question...similarities and differences between normal curve and skewness
Statistics can be used to compare and contrast trends, similarities and differences in data.
Graphs help organize information and establish patterns between variables. A graph is a visual way to compare and contrast two or more entities.