Scores on a Test Are Normally Distributed with a Mean $P _ { 81 }$

question 69

Multiple Choice

Scores on a test are normally distributed with a mean of 63.2 and a standard deviation of 11.7. Find $P _ { 81 }$ , which separates the bottom 81% from the top 19%.

• A) 0.291
• B) 66.6
• C) 73.5
• D) 0.88

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Definitions:

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The action of working together towards common goals or interests, often involving sharing information, resources, or efforts.

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Organizations formed by workers to protect their rights, negotiate wages and benefits, and advocate for better working conditions.

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The International Labour Organization, a UN agency that sets international labor standards and promotes rights at work, including encouraging decent employment opportunities and enhancing social protection.