All Canadians have government-funded health insurance, which pays for any medical care they require. However, when traveling out of the country, Canadians usually acquire supplementary health insurance to cover the difference between the costs incurred for emergency treatment and what the government program pays. In the United States, this cost differential can be prohibitive. Until recently, private insurance companies (such as BlueCross BlueShield) charged everyone the same weekly rate, regardless of age. However, because of rising costs and the realization that older people frequently incur greater medical emergency expenses, insurers had to change their premium plans. They decided to offer rates that depend on the age of the customer. To help determine the new rates, one insurance company gathered data concerning the age and mean daily medical expenses of a random sample of 1,348 Canadians during the previous 12-month period.

a. Calculate the coefficient of determination.

b. What does the statistic calculated in part (a) tell you?

c. Determine the least squares line.

d. Interpret the coefficients.

e. What rate plan would you suggest?

A 22-year-old woman presents with fatigue, shortness of breath, and loss of appetite. Her symptoms started 2 weeks ago and have progressively worsened. She has had a fever for the past 3 days and night sweats. Her past medical history is unremarkable except for a wisdom tooth extraction approximately 2 months before she came to the clinic. On physical examination, she has a temperature of 38.6° C, heart rate of 120/min, respiratory rate of 22/min, and BP of 110/85 mm Hg. She has a 4/6 holosystolic murmur that radiates to the left axilla. Skin examination reveals scattered petechiae on her extremities.

1. What is the most likely diagnosis? Justify.

2. What are common clinical findings on physical exam that are associated with this condition?

3. What risk factors are associated with an increased incidence of this condition?

4. What are the most common pathogens associated with this condition?

5. What are the most appropriate next steps in the investigations of this patient?

6. What are the possible complications of this condition?

Because good writing is always a process, our persuasive essay will be written in two parts: a first draft due this week and a final draft due in next week .

As you prepare, here are a few reminders for this week’s draft:

In week 3 you posted a thesis for peer review. Use the revised thesis, based on your classmates’ and teacher’s feedback as the basis for your persuasive paper.

Use your sources to support your thesis. Research and prepare the passages you will consider using. Remember to review methods of paraphrasing, summarizing, and using direct quotations.

1. Prepare the body paragraphs by deciding where to place supporting information. Remember, each paragraph of the paper should act to build the momentum of the argument.
2. Apply pathos, logos, and ethos whenever possible.
3. Finally, remember that it’s okay if your ideas, opinions, or sources change during process of writing this paper. Writing makes us think, and it’s fine – even beneficial – to have our thoughts change as we express them on paper.