What Is the Mean and Standard Deviation of Most Intelligence

question 112

Multiple Choice

What is the mean and standard deviation of most intelligence tests?

• A)mean of 85,standard deviation of 15
• B)mean of 100,standard deviation of 30
• C)mean of 100,standard deviation of 15
• D)mean of 115,standard deviation of 30

---

Definitions:

Coefficient of Variation

A measure of relative variability that indicates the ratio of the standard deviation to the mean, commonly used to assess the risk per unit of return.

Expected Return

The weighted average of all possible returns from an investment, factoring in the probabilities of each outcome.

Variance

A measure of the dispersion or spread between numbers in a data set, indicating how much the numbers differ from the mean.

Portfolio Risk

The risk associated with holding a portfolio of investments, reflecting the potential for loss due to market volatility.