Four-month-old baby oscar is a participant in a preferential looking experiment. researchers show oscar two photos, one of which is of his mother's face, and the other which is of a female stranger's face. the photos are presented repeatedly in differing locations, and the amount of time oscar spends looking at the photos is recorded. what will researchers conclude if oscar shows a reliable preference for his mother's face over the stranger's face?

Alyeska services company, a division of a major oil company, provides various services to the operators of the north slope oil field in alaska. data concerning the most recent year appear below: sales $18,000,000 net operating income $6,300,000 average operating assets $35,200,000 1. compute the margin for alyeska services company. (round your answer to 2 decimal places.) 2. compute the turnover for alyeska services company. (round your answer to 2 decimal places.) 3. compute the return on investment (roi) for alyeska services company. (round your intermediate calculations and final answer to 2 decimal places.)

4. suppose that pollution in a neighborhood comes from two factories, with marginal benefit curves given by mb1 = 12 – p1 and mb2 = 8 – p2. the level of pollution in the neighborhood is given by p = p1 + p2. the government wants to limit pollution by instituting a pollution-rights market. the government’s desired level of p is 10, so it prints 10 pollution rights and offers them for sale to the firms. a)find the equilibrium selling price of a pollution right, as well as the allocation of rights (and hence pollution levels) across the two factories. b)repeat part (a) for the case where the government’s desired level of pollution equals 14. c)comment on the usefulness of a pollution rights market in achieving efficient levels of pollution abatement.

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.