1. In 2010, there were 349 new cases of syphilis in Austin,Texas. Including the 349 new cases, there were a total of 1563cases in 2010 in Austin. In total, 154,678 were at risk forsyphilis in Austin. The city population of Austin was 806,463 in2010. What was the prevalence rate of syphilis cases for 2010 per1,000 (hint: what proportion of the city population had thedisease)? What was the incidence rate in 2010 per 1,000?
2.During a sports physical clinic, 6 out of 400 male high schoolstudents complained of knee pain while 12 out of 400 female highschool students complain of knee pain. Does this mean that maleshad a two times less risk of having knee pain than females? Why orwhy not?
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