Here are the returns on two stocks.
a. Calculate the variance and standard deviation of each stock. Which stock is riskier if held on its own?
b. Now calculate the returns in each month of a portfolio that invests an equal amount each month in the two stocks.
c. Is the variance more or less than halfway between the variance of the two individual stocks?

The 2016 financial statements of the new york times company reveal average shareholders’ equity attributable to controlling interest of $837,283 thousand, net operating profit after tax of $48,032 thousand, net income attributable to the new york times company of $29,068 thousand, and average net operating assets of $354,414 thousand. the company's return on net operating assets (rnoa) for the year is: select one: a. 3.5% b. 6.9% c. 13.6% d. 18.7% e. there is not enough information to calculate the ratio.

Required prepare the necessary adjusting entries in the general journal as of december 31, assuming the following: on september 1, the company entered into a prepaid equipment maintenance contract. birch company paid $3,400 to cover maintenance service for six months, beginning september 1. the payment was debited to prepaid maintenance. supplies on hand at december 31 are $3,900. unearned commission fees at december 31 are $7,000. commission fees earned but not yet billed at december 31 are $3,500. (note: debit fees receivable.) birch company's lease calls for rent of $1,600 per month payable on the first of each month, plus an annual amount equal to 1% of annual commissions earned. this additional rent is payable on january 10 of the following year. (note: be sure to use the adjusted amount of commissions earned in computing the additional rent.)

Describe three scenarios in which you might utilize mathematics to investigate a crime scene, accident scene, or to make decisions involving police practice. be sure to explain how math is used in police as they work through each scenario.