Exam Scores in a Random Sample of Students Were 0

question 59

Multiple Choice

Exam scores in a random sample of students were 0, 50, 50, 70, 70, 80, 90, 90, 90, 100. Which statement is incorrect?

• A)The standard deviation is 29.61.
• B)The data are slightly left-skewed.
• C)The midrange and mean are almost the same.
• D)The third quartile is 90.

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Definitions:

Leadership Style

The characteristic manner and approach by which a leader directs, motivates, and manages their team.

Achievement Oriented

A focus on setting challenging goals and working towards them with determination and confidence.

Hersey-Blanchard

The creators of the Situational Leadership Model, which proposes that effective leadership style varies according to the maturity of team members.

Situational Leadership Model

This model suggests that there is no single "best" style of leadership; effective leadership varies with the individual or group being led and the task, job, or project at hand.