When Should Measures of Location and Dispersion Be Computed from Grouped

question 105

Multiple Choice

When should measures of location and dispersion be computed from grouped data rather than from individual data values?

• A) As much as possible since computations are easier
• B) Only when individual data values are unavailable
• C) Whenever computer packages for descriptive statistics are unavailable
• D) Only when the data are from a population

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Definitions:

Labour Hours

The total number of hours worked by employees in a specified period, commonly used as a measure of labor input.

Cast Bronze Valves

Valves made from cast bronze material, often used in plumbing and industrial applications for controlling the flow of liquids or gases.

Labour Productivity

The measure of the efficiency of a person, machine, factory, or system in converting inputs into useful outputs.