I would take the phrase "ordered pair" to mean
A pair (a,b) in which a <= b always
3 (11.5%)
A pair (a,b) in which (a,b) and (b,a) count as different unless a=b
19 (73.1%)
I would always ask which one you meant
3 (11.5%)
SEWIWEIC
1 (3.8%)
I would take the phrase "ordered list" to mean
A list which is in order according to some sorting criterion, e.g. alphabetical
19 (73.1%)
A list in which order is significant, i.e. [1,2] and [2,1] are interestingly distinct
5 (19.2%)
I would always ask which one you meant
2 (7.7%)
SEWIWEIC
0 (0.0%)
I would take the phrase "ordered collection", in the context of data structures, to mean
A data structure which keeps elements in an order determined by some sorting criterion
9 (36.0%)
A data structure which considers the order of elements to be an important part of what it's remembering
11 (44.0%)
I would always ask which one you meant
5 (20.0%)
SEWIWEIC
0 (0.0%)