Assume that we have seeded a program with 5 defects before testing. After the test, 20 defects were detected, of which, 2 are from the seeded defects and 18 are real, non-seeded defects. We know there are 3 more seeded defects remaining in the software. Assuming a linear relationship, what is the estimated real, non-seeded defects that may still be remaining in the program

see explaination

Explanation:

Given that we have;

Defects before testing = Defects planted = 5

Defects after testing = 20

Seeded defects found = 2

Real, non seeded defects = 18

Hence, Total number of defects = (defects planted / seeded defects found) * real, non seeded defects = (5/2)*18 = 45

Therefore, Estimated number of real defects still present = estimated total number of defects - number of real, non seeded defects found = 45-18 = 27

what? ? i don't get it