Statistics MCQs, Data Analysis, Stat Software
Levels of Measurement (Scale of Measure) The levels of measurement (scale of measures) have been classified into four categories. It is important to understand these measurement levels since they play an important part in determining the arithmetic and different possible statistical tests carried on the data. The scale of measure …
The post is about Quantitative and Qualitative Variables. First, we need to understand the concept of data and variables. Let us start with some basics. The word “data” is used in many contexts and is also used in ordinary conversations frequently. Data is Latin for “those that are given” (the …
By statistical Data we mean, the piece of information collected for descriptive or inferential statistical analysis of the data. Data is everywhere. Therefore, everything that has past and/ or features is called statistical data. One can find the Statistical data Data Data is the plural of datum — it is …
A transformation is a rescaling of the data using a function or some mathematical operation on each observation. When data are very strongly skewed (negative or positive), we sometimes transform the data so that they are easier to model. In another way, if variable(s) does not fit a normal distribution …