To determine who ran a greater distance among Nancy and Hiyang using the provided chart and the potential additional information, we need to consider which piece of information will help us accurately compare the distances run by each person. The options are:
1. The time spent running each day
2. The reference point used each day
3. The units used to measure distance each day
4. The location used by the runners each day
Let's analyze each option:
1. The time spent running each day: If we know how much time each person spent running, we can also analyze their speed and consistency. Assuming that distance can be affected by the duration of their training sessions, knowing the time each person spent running would allow us to calculate and compare their paces, thus giving a more precise picture of who ran a greater distance over time.
2. The reference point used each day: This option is too vague and does not provide relevant information that could help in determining the actual distances run by each person.
3. The units used to measure distance each day: This is important if the chart provided distances in different units (e.g., miles vs. kilometers). However, there is no indication in the chart that different units might have been used. Therefore, unless there is a discrepancy of units, this information isn’t essential.
4. The location used by the runners each day: Knowing the location might provide context about the terrain and conditions, but it doesn't directly help in comparing the distances run by each.
Based on this analysis, the most relevant information to determine who ran a greater distance is:
The time spent running each day
This will give us insight into the overall performance and allow us to make a more informed comparison of the distances run by Nancy and Hiyang. Thus, the information that should be added to the chart is:
- The time spent running each day
