Use the data given below to answer the following questions) .
Below is a spreadsheet of purchase orders for a computer hardware retailer. 123456789101112 A Purchase Orders Supplier Rex Technologies Rex Technologies Rex Technologies Rex Technologies Max’s wavetech Max’s wavetech Max’s wavetech B item Description Graphics Card Monitor Keyboard Speakers HD Cables Processor Hard disk C Item Cost $89$150$15$15$5$278$120D Quantity 35154020102718E Cost per Order $3115 $2250$600$300$50$6950$2160F AP Terms Months) 20251525253020G Order No. AL123 AL234 AL345 AL456 KO876 KO765 KO654 H Order Size Large Small Large Small Small Large Small
-For which of the following columns can the COUNT function be performed?
Risk-free Portfolio
A portfolio consisting of investments that are considered to have zero risk, often associated with government securities.
Standard Deviation
A statistical measure of the dispersion or variability of a set of values, indicating how much the values differ from the mean.
Efficient Frontier
A concept in modern portfolio theory that represents a set of optimal portfolios offering the highest expected return for a defined level of risk.
Standard Deviation
A statistical measure of the dispersion of returns for a given security or market index, often used to gauge the amount of variability or volatility of an investment.