Sentence:  In repetitions of the experiment from couple to couple , the votes of the two persons in a couple probably agree more often than independence would imply , because couples who visit the museum together are more likely to have similar tastes than are a random pair of people drawn from the entire <WSD>population</WSD> of visitors . 
Meaning of the word marked with <WSD> tags:  (statistics) the entire aggregation of items from which samples can be drawn