Which term is a quantity or amount adopted as a standard of measurement, such as dollars, hours, or grams?

Which term is a quantity or amount adopted as a standard of measurement, such as dollars, hours, or grams?

• A. Mean
• B. Units
• C. Percent
• D. X-axis

Answer: (B)

A quantity or amount adopted as a standard of measurement is called units. Units give numbers real meaning and let you measure and compare things consistently. For example, dollars measure money, hours measure time, and grams measure mass. Without units, a number like 5 is abstract; with units, it clearly signifies five dollars, five hours, or five grams. Other terms don’t serve as a standard measurement in the same way. Mean is the average of a set of numbers, not a unit of measurement. Percent expresses a portion as a part of a hundred, not a basic measuring unit. The X-axis is the horizontal axis of a graph, used for plotting data, not a standard unit of measurement.

A quantity or amount adopted as a standard of measurement is called units. Units give numbers real meaning and let you measure and compare things consistently. For example, dollars measure money, hours measure time, and grams measure mass. Without units, a number like 5 is abstract; with units, it clearly signifies five dollars, five hours, or five grams.

Other terms don’t serve as a standard measurement in the same way. Mean is the average of a set of numbers, not a unit of measurement. Percent expresses a portion as a part of a hundred, not a basic measuring unit. The X-axis is the horizontal axis of a graph, used for plotting data, not a standard unit of measurement.