Wk 1 Birthday problem 4 might have wrong algebra at the minimum (the logic might be flawed as well)

Course Q&A Math for Machine Learning Probability & Statistics for Machine Learning &...
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Hi Kevin,

I agree with you that the question itself is ambiguous (Is it 2 rooms each with n students? Or is it 2 rooms with a total of n students?). Furthermore, the logic in the solution seems incorrect as well.

I explained why the solution involves n^2 in this post: Seemingly incorrect analytical solution to Problem 4 of Birthday Lab - #5 by Jason7

Anyway, it would be great if the course provider could provide clarification and update the materials.

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