Plz me what is conditional frequency and how do i use it

Conditional Frequency is a two-way table (also called a contingency table) is used to examine relationships between categorical variables. The entries in the cells of a two-way table can be frequency counts or relative frequencies.
How to use a Conditional Frequency is,
  1. Create a two-way frequency table.
  2. Convert your numbers into relative frequency numbers.
  3. Identify joint and marginal frequencies. 
  4.Calculate conditional relative frequencies.