Question

nancy and hiyang are training for a race. they entered some of their training notes in a chart.
training notes

day	nancys distance run	hiyangs distance run
monday	2	5
tuesday	3	5
wednesday	3	7
thursday	4	8
friday	5	10

which information should be added to the chart in order find out who ran a greater distance?

• the time spent running each day
• the reference point used each day
• the units used to measure distance each day
• the location used by the runners each day

Explanation:

To compare the distances run by Nancy and Hiyang, we need to know the units of the distance values. Without units, we can't tell if the numbers represent miles, kilometers, etc. and thus can't accurately determine who ran a greater distance. Time, reference - point, and location are not relevant for simply comparing the magnitudes of the distances run.

Answer:

the units used to measure distance each day