The test suite (set of test input) used to perform unit testing on a module could cover 70% of the code. What is the reliability of the module if the probability of success is 0.95 during above testing?
- A. 0.665 to 0.95
- B. At the most 0.665
- C. At the most 0.95
- D. At least 0.665
Answer: B. At the most 0.665
Explanation: Reliability $\le$ Coverage $\times$ Success Probability = $0.70 \times 0.95 = 0.665$. Since 30% is untested, reliability is bounded by the tested portion's reliability.