What does it mean to measure a migration rate? how do migration rates affect populations? explain your answer in at least two or three sentences.

Doctors recommend that both men and women take an aspirin every day to prevent heart attacks. however, the sample in the research study only contained men. the problem with doctors making this aspirin recommendation reflects a bias.

When paul realizes no one is coming to the rwandan refugees, he tells them there is only one way for them to get . what is it?

What is the largest room in the white house