### Video Transcript

Which of the following data sets is
suitable to calculate how many hospitals there are in a city? Is it (A) mass population or (B)
samples?

When deciding which type of data
set to choose, we need to consider any constraints. These include time and money, but
they also include what we are trying to find out from our question. In this question, we need to
calculate the number of hospitals in a city. This means that we want an exact
answer. As a result, taking a sample would
not be beneficial, as there could be more hospitals in some areas of the city than
in others. In order to calculate how many
hospitals are in a city, we would need to count each individual hospital. This means that we need to use the
whole population. The correct answer is therefore
option (A). The data set that is most suitable
is mass population.