Final answer:
Emma is likely to conclude that there is a significant disparity in life expectancy between those who live in wealthy, secure townships and those who live in poor, crowded inner-city neighborhoods.
Step-by-step explanation:
The most likely conclusion that Emma will reach when contrasting the lifestyle between those who live in wealthy, secure townships with those who live in poor, crowded inner-city neighborhoods based on data she gathers about life expectancy is that there is a significant disparity in life expectancy between these two groups. It is likely that those living in wealthy, secure townships will have a higher life expectancy compared to those living in poor, crowded inner-city neighborhoods.