The Following Ten Scores Were Obtained on a 20-Point Quiz

question 152

Multiple Choice

The following ten scores were obtained on a 20-point quiz: 4, 5, 8, 9, 11, 13, 15, 18, 18, and 20. The teacher computed the usual descriptive measures of center (central tendency) and variability (dispersion) for these data, and then discovered an error was made. One of the 18's should have been a 16. Which one of the following measures, calculated on the corrected data, would change from the original computation?

• A) mean and standard deviation
• B) mean and median
• C) range and median
• D) mean and range.
• E) mean, standard deviation, range and median

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Definitions:

Management

The process of organizing, planning, directing, and controlling resources to achieve organizational goals effectively and efficiently.

Vision

A positive and future-focused image of what could and should be that focuses and energizes people; an essential requirement for effective leadership. A successful vision is leader-initiated, shared and supported by followers, comprehensive and detailed, and uplifting and inspiring.

Leader

A person who guides or directs a group towards achieving specific goals.

Effort

The amount of mental or physical energy put into a task or activity to achieve a specific goal.