A Set of Scores Has a Mean of 75

question 22

Multiple Choice

A set of scores has a mean of 75. Jiang's score of 60 converted to a z-score of -1.5. What was the standard deviation of the distribution?

• A) 5
• B) 10
• C) 15
• D) 20

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Definitions:

Loyal

Showing steadfast allegiance or faithfulness to a cause, institution, or individual.

Superior Performance

Exceeding established norms or benchmarks in activities, efforts, or outputs, typically resulting in significant achievements or recognition.

Decide-Alone Option

The principle of making a decision without consulting others, typically in contexts where individual judgment is valued or necessary.

Vroom-Jago

A model used in decision-making that evaluates the effectiveness of different leadership styles in various situational scenarios.