Exhibit 21-2 A Simple Random Sample of 43 Elements Has Been Selected

question 25

Multiple Choice

Exhibit 21-2
A simple random sample of 43 elements has been selected from a population of size 800. The sample mean is 500, and the sample standard deviation is 60.
-Refer to Exhibit 21-2. The population total is

• A)34,400
• B)21,500
• C)400,000
• D)500,000

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Definitions:

Modem/Router

A device that combines the functionalities of a modem and a router to connect computers to the internet and allow them to share the connection.

Home Network

A digital network within a household that connects devices such as computers, phones, and entertainment systems to each other and the internet.

NAS

Network Attached Storage, a file-level storage architecture connected to a computer network providing data access to a group of clients.

Data Backup

The process of copying or archiving files and data so they can be restored in the event of data loss, which can be due to system failure, data corruption, or disasters.