Problem 661. Spot the outlier

The instructions were a bit confusing at first. It would have been better to say "Find the row number of the outlying point."

Also, using the third row as an answer and a 3 in a column of zeros makes it seem like the intent was to provide unclear instructions. (Or they are just used to writing college textbooks ;) )

The test set cases 2,3 seems to have two outliers for each case. Please check it

i struggled with this one, not so much because of the concepts/maths involved, but because of issues with floating point precision that occur with test case 3 where my functions kept erroring after determining that 15.0000 ~= 15