If the rate ratio (rr) and its 95% confidence interval for a cohort study is rr = 1.1 (0.7, 1.6), what is the most appropriate conclusion about the association between the exposure and the disease of interest? a. the exposure is a risk factor for the disease b. there is no statistically significant association between the exposure and the disease c. the exposure is protective against the disease. d. none of these

Which term refers to the total dollar value of the goods and services produced in a country in a year?

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .