Has anyone found an easy way to memorize all of these indicators

For question 5, is it wrong to assume that the comparison could also be 59% vs the rest of the households? I saw it as comparing them in who maintained a lower indoor temperature. Can someone explain so I can rewire my thought process to see the other comparison?

What exactly is the significance of "winning"? Is it just for context? Also, does "winning" have to do specifically with which party has a more beneficial outcome? For example in this question, because having fewer allergies is a good thing, the larger family wins?