Use Technology to Solve the Following Problem: the Mean Annual

question 105

Multiple Choice

Use technology to solve the following problem: The mean annual income for people in a certain city (in thousands of dollars) is 44, with a standard deviation of 35. A pollster draws a sample of 59 People to interview. What is the probability that the sample mean income is between 42 and 48 (thousands of dollars) ?

• A) 0.5204
• B) 0.4796
• C) 0.8100
• D) 0.1900

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Definitions:

Virus Signature

A portion of the virus code that’s unique to a particular computer virus and that makes it identifiable by antivirus software.

Encryption Code

A security mechanism that encodes data so that only authorized parties can access it.

Virus Pattern

A set of unique identifiers or 'signatures' used by antivirus software to detect and mitigate known malware and viruses.

Ethical Hackers

Professionals who employ hacking techniques to help identify and fix security vulnerabilities in systems, with permission from the system owners.