Approximate the Variance and Standard Deviation of a Variable from Grouped

question 94

Multiple Choice

Approximate the Variance and Standard Deviation of a Variable from Grouped Data
-For the following data set, approximate the sample standard deviation of emails per day. $\begin{array}{c|c}\text { Emails (per day) } & \text { Frequency } \\\hline 8-11 & 18 \\12-15 & 23 \\16-19 & 38 \\20-23 & 47 \\24-27 & 32\end{array}$

• A) \(5.1\) emails
• B) \(4.0\) emails
• C) \(25.8\) emails
• D) \(19.3\) emails

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Definitions:

Workers' Compensation Award

A financial benefit granted to employees who suffer injuries or illnesses directly related to their job duties.

Work-Related

Pertaining to tasks, activities, or issues that arise in the context of one's employment or workplace.

OSHA

The Occupational Safety and Health Administration (OSHA) is an agency of the United States Department of Labor that ensures safe and healthful working conditions by setting and enforcing standards and by providing training, outreach, education, and assistance.

Employer

An individual or organization that hires and pays individuals for their labor or services.