Variables are properties or characteristics of some event, object, or person that can take on different values or amounts. Just as there are different types of characteristics, there are different typ...Variables are properties or characteristics of some event, object, or person that can take on different values or amounts. Just as there are different types of characteristics, there are different types of variables. Some variable types do not admit certain computations and analyses; so, it is important that we pay close attention to the variables and data that we analyze.
This page introduces key statistical concepts, covering data types (qualitative and quantitative) and sampling methods for reliable representation. It details the four measurement levels (nominal, ord...This page introduces key statistical concepts, covering data types (qualitative and quantitative) and sampling methods for reliable representation. It details the four measurement levels (nominal, ordinal, interval, ratio) and stresses accurate data reporting and organization. It also highlights the significance of experimental design, including random assignment and control groups, while addressing ethical considerations in statistics.
