Data analysis
Answer Key Probabilities
How often each choice (A, B, C, D) was keyed as the correct answer across the software engineering question bank — 556 unique MCQs analyzed.
- Overall most likely
- A (28.6%)
- Least likely
- D (19.8%)
- Banks covered
- 7
All question banks combined
1,315 unique MCQs across the 697 bank, Gondar 2018, Hawassa & Gondar 2026, and JU by Yared.
- Questions
- 556
- Most likely
- A
Choice ATop159 (28.6% · P=0.286)
95% CI: 0.0% – 0.0%
Choice B147 (26.4% · P=0.264)
95% CI: 0.0% – 0.0%
Choice C140 (25.2% · P=0.252)
95% CI: 0.0% – 0.0%
Choice D110 (19.8% · P=0.198)
95% CI: 0.0% – 0.0%
Uniform baseline: 25% eachχ² = 0.0Entropy: 0.00 bits
How to use this
These probabilities reflect how often each letter was keyed as correct in past papers — not a rule for future exams. Choice B is the most common overall (38.4%), while D is least common (13.6%), especially in Gondar 2026 samples. Always eliminate wrong options first; use letter frequency only as a last resort when guessing.