Soccer would be because it involves a lot of running which is cardio
<u>The director of a community health organization reads that about 1,300 new cases of HIV infection are expected in her city in the coming year. This statement illustrates an epidemiological statistic called significance or prevalenc</u>e (is a sample of a population who have a specific characteristic in a given period). Just randomly select a sample from the population you want to describe. It is the number of people in the sample with the characteristic of interest, divided by the total number of people in the same sample (differences in methodology may impact significance/prevalence estimates).
The hepatitis B virus is a DNA virus belonging to the Hepadnaviridae family of viruses. Hepatitis B virus is not related to the hepatitis A virus or the hepatitis C virus. Some people with hepatitis B never clear the virus and are chronically infected.