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Statistics for Data Science II · Quiz 1 · 13 Jul 2025 · May 2025 term

Question 3: The time (in minutes) a customer spends inside a service …

Question 3

+3 marksNumerical answer

The time (in minutes) a customer spends inside a service center follows an exponential distribution with an average of 10 minutes. What is the probability that a customer has to wait at least 12 more minutes in the center given that he has already spent 10 minutes in the center? Enter the answer correct to two decimal places.

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Correct answer: 0.3 (accepted within ±0.03)

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Question 3 of 16 in the IIT Madras BS Statistics for Data Science II (Stats 2) Quiz 1 paper sat on 13 Jul 2025, in the May 2025 term (IIT M DIPLOMA AN EXAM QDD2 13 July 2025). It carries 3 marks.

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