Scores on a Test Are Normally Distributed with a Mean

question 28

Multiple Choice

Scores on a test are normally distributed with a mean of 68.9 and a standard deviation of 11.6. Find P81, which separates the bottom 81% from the top 19%.

• A) 79.1
• B) 72.3
• C) 0.291
• D) 0.88

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Definitions:

Public Cloud

A computing service model where resources, like servers and storage, are owned and operated by a provider and delivered over the Internet to multiple customers on a pay-per-use basis.

Grid Computing

A distributed computing model that uses a network of computers to work together, performing complex tasks by dividing them into smaller jobs.

Supercomputers

Extremely powerful computers with high computational capacity, used for complex tasks such as climate research, bullet simulations, and quantum mechanics.

Legacy Systems

Older technology systems, software, or applications that are still in use, despite the availability of newer versions.