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-   -   *answer* hw q7 (http://book.caltech.edu/bookforum/showthread.php?t=9562)

kdmossman 05-15-2021 11:59 AM

*answer* hw q7
 
Just to help other slow learners...

This is the one about the growth function for the "2-intervals" hypothesis set.

I understand the answer this way:
(N choose 4) dichotomies when you pick two distinct intervals from N points
+ (N choose 2) dichotomies when you pick one interval from N points (this is when you have two intervals that overlap in some way)
+ 1 dichotomy when all 4 endpoints fall in the same interval.


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