The standard deviation of a portfolio:
a. is a weighted average of the standard deviations of the individual securities held in the portfolio.
b. can never be less than the standard deviation of the most risky security in the portfolio.
c. is an arithmetic average of the standard deviations of the individual securities which comprise the portfolio.
d. can be less than the standard deviation of the least risky security in the portfolio.
e. must be equal to or greater than the lowest standard deviation of any single security held in the portfolio.

The distinction between a normal and an inferior good is

The monthly payment m of a loan of amount p for y years with an interest rate r can be calculated by the formula: m = p(r/12) 1 â’ (1 + r/12)â’12y calculate the monthly payment and the cummulative total payment for a $100,000 loan with an interest rate of 4.85% if taken out for 10 years, for 11 years, etc., up to a 30 year term. display the results in a three-column table where the first column is the number of years, the second is the monthly payment, and the third is the cummulative total payment. note: use format bank; for this problem. also, remember to represent the interest rate as a decimal (e.g. 0.0485) 2. a torus-shaped water tube is designed to have a volume of 8, 000in3 . the volume of the tube, v , and its surface area, s, are given by: v = 1 4 ď€ 2 (a + b)(b â’ a) 2 s = ď€ 2 (b 2 â’ a 2 ) if a = kb, determine s, a, and b for k = 0.2, 0.3, 0.7. display the results in a table

Acrosswalk_when there are no pavement markings.