Moderating Variables Moderating variables are the variables which strongly effect on relationship of independent-variables and dependent-variables i.e. existence of a moderating variable transforms the original relationship between dependent and independent variable. For example, the relationship between quality of a library facilities “X” and performance of the students “Y” has been observed... 

Data: A collection of raw facts and figures is called data. Data is collected from different sources and is not very meaningful for making decisions. Data may consist of numbers, characters, symbols or pictures etc. Data is collected for different purposes. Examples of Data: Different organizations conduct surveys to know the opinion of the people about their product. In these surveys, people express... 

Supply is of the scarce goods. It is the amount of a commodity that sellers are able and willing to offer for sale at different prices per unit of time. In the words of Meyer “Supply is a schedule of the amount of a good that would be offered for sale at all possible prices at any period of time; e.g., a day, a week, and so on”. Distinction between Supply and Stock. Here, it seems necessary...