The Z-Score Representing the 90th Percentile of the Standard Normal

question 85

Multiple Choice

The z-score representing the 90th percentile of the standard normal distribution is:

• A) 1.28.
• B) -1.28.
• C) 0.67.
• D) -0.67.
• E) 1.645.

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Definitions:

Longitudinal Study

A research method that involves observing the same subjects over a period of time, often years or even decades, to track changes or development.

Selective Optimization

A strategy focusing on maximizing performance in key areas through the selection of specific tasks, optimization of resources, and compensation for declines in other domains.

Skill Areas

Categories or domains of competencies and expertise that individuals can develop, such as communication skills, analytical skills, or technical skills.

Concentrate

To focus one's mental or physical effort on a particular task or activity without distraction.