Hi All,
So I'm still struggling to identify exactly when certain arguments could be strengthened or weakened by the total number of samples (or any sort of number play for that matter) and when they cannot be. I remember seeing a few questions in the past where certain group was seeing a particular pattern or a phenomenon while the other group didn't and the discrepancy was due to some problems related to the size of the sample in one group (either their total number of participants were not counted properly, thereby inflating the trend) etc.
PT 77 Section 2 #19: A recent study examined the daytime and nighttime activity patterns of two populations of tree-dwelling lemurs - the first living in a rain forest, where tree canopy cover is consistent year0round, and the second living in a deciduous forest, where many trees lose their leaves during the winter months. Both groups of lemurs were found to be more nocturnal during winter months than they were the rest of the year. However, the winter increase in nocturnal activity was significantly more pronounced for the population living in the deciduous forest than it was for the population living in the forest.
For the question above, none of the answer choices really stood out for me initially and when I looked through them again, I noticed how the AC (D) was talking about the bird population in these forests are different, in fact, the lemur population in the rain forest is twice the size of the population in the deciduous forest... I thought that if that's the case, couldn't it be possible that the nocturnal activity looks more pronounced in the deciduous forest even though the two forests had the same number of birds that are both just as active at night? The correct answer turned out to be (B) which talked about the high-flying bird predators who hunt their prey during daylight...
So my question is, how are we supposed to know when these numbers actually come in play and exactly what the question means in this case - whether there are more % of these birds in each forest (in which case the population size matters) or it could be that the entire bird population is following a certain trend?
https://classic.7sage.com/lsat_explanations/lsat-77-section-2-question-19/