ISRO | ISRO CS 2020 | Question 5

What is the defect rate for Six sigma ?
(A) 1.0 defect per million lines of code
(B) 1.4 defects per million lines of code
(C) 3.0 defects per million lines of code
(D) 3.4 defects per million lines of code


Answer: (D)

Explanation: Six Sigma performance produces a defect-free product 99.99966% of the time; allowing only 3.4 errors per one million opportunities.
10 applications would need to be corrected during the entire year.
Four sigma and six sigma levels of performance both have an error free rate over 99% of the time.

Reference – Six Sigma.

Option (D) is correct.

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