A quality control inspector finds that 20% of light bulbs are defective. If a batch of 5 light bulbs is tested, what is the probability that exactly…
CA Foundation · Quantitative Aptitude · PYQS · January 2026
A quality control inspector finds that 20% of light bulbs are defective. If a batch of 5 light bulbs is tested, what is the probability that exactly 1 bulb is defective?
Suggested Answer and Working Notes:
Correct Answer: Option (A)
A. 0.4096
Topics: Part-C: Statistics
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