Find the Number of Standard Deviations from the Mean

question 120

Multiple Choice

Find the number of standard deviations from the mean. Round your answer to two decimal places.
-The number of hours per day a college student spends on homework has a mean of 4 hours and a standard deviation of 0.75 hours. Yesterday she spent 3 hours on homework. How many standard deviations from the mean is that?

• A) 1.33 standard deviations below the mean
• B) 0.67 standard deviations above the mean
• C) 0.67 standard deviations below the mean
• D) 1.33 standard deviations above the mean

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Definitions:

Physical Workplace Risks

Hazards present in the workplace environment that have the potential to cause physical harm to employees.

Employees

Persons hired to perform services for a company or organization under an agreement of employment.

Information Technology Systems

These are organized systems comprising hardware, software, databases, networks, and other technology components that support and enable the processing and distribution of data.

Corporate Data

Information that is created, stored, and used by organizations, including financial records, customer data, and operational insights.