An emergency room receives an average of 3 patients per hour. What is the probability that exactly 2 patients arrive in an hour? (Given: e 0 = 1, e…
CA Foundation · Quantitative Aptitude · PYQS · September 2025
An emergency room receives an average of 3 patients per hour. What is the probability that exactly 2 patients arrive in an hour? (Given: e 0 = 1, e -1 = 0.367, e -2 = 0.135, e -3 = 0.049, e -4 = 0.018, e -5 = 0.0067)
Suggested Answer and Working Notes:
Correct Answer: Option (A)
A. 0.22
Topics: Part-C: Statistics
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