Chances the T's in "tots" are this? (4)

I believe the answer is:

odds

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'chances' is the definition.
(the odds of something happening)

I don't understand the remainder of the clue.

(Other definitions for odds that I've seen before include "The chances of something happening" , "Betting ratio" , "Things not even" , "at which one may be disagreeing" , "Ratios set by bookies" .)

I've seen this clue in The Telegraph.

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