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Business Analytics · Quiz 1 · 15 Mar 2026 · January 2026 term

Question 10: What is the probability that a bulb from the production …

Question 10

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DMS lighting produces 3 types of bulbs (Type-A, Type-B and Type-C). The probability that a Type-A bulb will give more than 100 hours (>= 100 hours) of life is 0.8, with the corresponding probabilities of Type-B and Type-C bulbs being 0.6 and 0.7 respectively. In any production, 30% of the bulbs are of Type-A, 35% are of Type-B and 35% are of Type-C. Based on the above data, answer the given subquestions.

What is the probability that a bulb from the production lot will give a life of more than 100 hours? (Note: Input your answer rounded to two decimal places. For example, if your answer is “1.235” then enter the answer as “1.24”)

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Question 10 of 20 in the IIT Madras BS Business Analytics (Business Analytics) Quiz 1 paper sat on 15 Mar 2026, in the January 2026 term (Business Analytics 15 Mar 26). It carries 1 mark.

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