The number of individual people represented in the person data set as indicated by the person_if is; 9 individuals.
The number of contacts made with people from family 3 as in the task content is; 3 contacts, namely, G, H and I.
<h3>How many individual people are represented in the person dataset?</h3>
As evident in the task content, we are expected to access the table and evaluate the data representation in order to draw inferences from observation.
The person_id column assigns an alphabet to each individual.
Hence, the total number of individuals represented in the person data set is; 9 individuals.
Also, since only persons G, H and I are evaluated in family 3, it follows that the total number of individuals checked in family 3 is; 3.
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