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Statistics for Data Science I · End Term · 13 Apr 2025 · January 2025 term · Set QDD3

Question 7: A group of 7 people (A, B, C, D, E, F, G) is to be seated…

Question 7

+3 marksNumerical answer

A group of 7 people (A, B, C, D, E, F, G) is to be seated in a row for a photograph.
The following conditions must be satisfied:
• A and B must always sit next to each other.
• D and E cannot sit next to each other.
What is the total number of valid arrangements under these conditions?

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Correct answer: 960

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Question 7 of 17 in the IIT Madras BS Statistics for Data Science I (Stats 1) End Term paper sat on 13 Apr 2025, in the January 2025 term (IIT M DIPLOMA AN EXAM QDD3 13 Apr 2025). It carries 3 marks.

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