A Sample of N = 20 Scores Is Transformed into Z-Scores.What

question 60

Multiple Choice

A sample of n = 20 scores is transformed into z-scores.What is the mean for the set of 20 z-scores?

• A)0
• B)1
• C)10
• D)Cannot be determined without more information

---

Definitions:

Portfolio

A collection of financial investments like stocks, bonds, commodities, cash, and cash equivalents, including mutual funds and ETFs.

Unique Risk

Nonmarket or firm-specific risk factors that can be eliminated by diversification. Also called firm-specific risk, nonsystematic risk, or diversifiable risk.

Diversification

Diversification is an investment strategy that aims to reduce risk by allocating investments among various financial instruments, industries, geographic locations, or other categories.

Portfolio

A collection of investments, such as stocks, bonds, commodities, and real estate, held by an individual or an institution.