number of defects found for perticular size of code

The Measure Defect-Density (DD) Measures the number of
defects in a perticular size of code. it is measured as follows:
LOC (Lines of Code), Defects: number of defects in the code;

DD = Defects/(K)LOC

by avg no of bugs in one module

Defect Density: [Weighted Defects / Size in Function Points]

This basically is the Consolidated Graph of Number of 
defects found in each module. This is help ful to locate 
the error prones and Help to concentrate on a particular 
area while making Analysis.

Deefct density is nothing but number of defects for 
particular size of code
We will determine the defect density using metrics and 
measurements i our environments

no

Total Number of Defects 
Defect density = -----------------------
                  Size of the Project
 

Size of Project can be Function Points, Feature Points, Use 
Cases, KLOC etc

Defect Density:

No of defects for a particular test coverage is known as 
defect density.

defect density is a specific feature in the testing life 
cycle.Means we can able to identify based on the total no 
of test cases we are having and how many of the tset cases 
failed while testing gives the measure of defect density.