Major Types of Data

Major Types of Data Observations about qualitative variables are typically made in words but are possibly coded into numbers later on for purposes of data processing. Observations about quantitative variables, in contrast, are numerical at the outset. Anyone who works with numbers, therefore, must be very clear about what, if anything, is measured by them.

Basic Concepts of Data Collection

Statistical work cannot be performed in a vacuum. Before all else, such work requires the acquisition of a crucial type of raw material: information relevant to the subject matter under study. Before going with data collection, you must become familiar with a number of crucial concepts that you will employ. Internal vs. External Data Sources … Continue reading Basic Concepts of Data Collection