Contingency tables

June 18, 2020 CONTINGENCY TABLES Today, I learned about contingency tables and their use in statistics and also the different types of table that are constructed. To begin with, let's know what a contingency table is : It is a table that summarises large data sets. Let us consider the following table:  Gender  Smokers Non-Smokers  Total Male 72  44  116   Female  34 53  87   Total 106 97  203  So. this table summarises an otherwise huge data set describing the relation between smokers and non- smokers and their genders. RELATIVE FREQUENCY CONTINGENCY TABLE I will refer to Contingency Table as CT from now on.  This is another form of CT wherein % value for each cell is recorded in a table.  Lets consider the values of our previous table: % value for cell x (x can be 1, 2, 3, 4....)=  {(count value in cell x)/(Total no. surveyed)} * 100 Thus, the values in cells would be : Cell 1 : 72/203*100 = 35.47% cell 2 :...