Final answer:
Mark used a frequency table to organize the information about the number of minutes each person in his neighborhood played sports in one week.
Step-by-step explanation:
Mark used a frequency table to organize the information. A frequency table is a data representation that displays grouped data along with the corresponding frequencies. It is a way to summarize and organize data by counting the number of occurrences of each value or range of values. In this case, Mark recorded the number of minutes each person played sports and organized the information into categories or intervals with their corresponding frequencies.