Stock returns vary from year to year. The more variance a stock displays the greater the potential risk. These are the rates of return for a stock over the last five years. Calculate the variance of these investment returns: 10, 30, 15, 5, 20. Hint: The variance of a series of numbers is the sum of the squares of their differences from the mean (average) of the numbers divided by the number of items in the series.

Jaynet spends $50,000 per year on painting supplies and storage space. she recently received two job offers from a famous marketing firm – one offer was for $95,000 per year, and the other was for $120,000. however, she turned both jobs down to continue a painting career. if jaynet sells 35 paintings per year at a price of $6,000 each: a. what are her accounting profits? b. what are her economic profits?

Engberg company installs lawn sod in home yards. the company’s most recent monthly contribution format income statement follows: amount percent of sales sales $ 80,000 100% variable expenses 32,000 40% contribution margin 48,000 60% fixed expenses 38,000 net operating income $ 10,000 required: 1. compute the company’s degree of operating leverage. (round your answer to 1 decimal place.) 2. using the degree of operating leverage, estimate the impact on net operating income of a 5% increase in sales. (do not round intermediate calculations.) 3. construct a new contribution format income statement for the company assuming a 5% increase in sales.

Why does the downward-sloping production possibilities curve imply that factors of production are scarce?