STA215H5 Lecture Notes - Lecture 1: Pie Chart, Level Of Measurement, Bar Chart
Document Summary
Statistic - finding from sample that allows to infer the parameter. Variables - characteristic of population or sample. Represent variable as x, y or z. The values of the variable are the possible observations of the variable. Data are the observed values of a variable. Interval data - real numbers, such as heights, weights, incomes,and distances. We also refer to this type of data as quantitative or numerical. For example, responses to questions about marital status nominal data. Nominal data are also called qualitative or categorical. Ordinal data - appear to be nominal, but the difference is that the order of their. For example, at the completion of most university courses, students are values has meaning. asked to evaluate the course. Order of values carries meaning and ranking. A table or list with all possible values for variable with corresponding frequencies.
