For Our Hunter-Gatherer Ancestors to Survive,physical Activity Was Essential

question 26

Multiple Choice

For our hunter-gatherer ancestors to survive,physical activity was essential.Today,what do children and adults in the United States spend an average of 55% of their day doing?

• A)Reading
• B)Standing
• C)Sleeping
• D)Sitting

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Definitions:

Optimal Risky Portfolio

A portfolio that offers the highest expected return for a given level of risk or the lowest risk for a given level of expected return.

Expected Return

The average return anticipated on an investment over a given period, accounting for the different rates of return and their probabilities.

Portfolio Variance

A measure of the dispersion of the returns of a portfolio, indicating the level of risk involved.

Correlation Coefficient

A numerical indicator that shows the extent of association between two variables' movements.