Question 1

1) The sudden dip occurred in 2001 on the "Overseas Arrival to the US" chart because the tragic terrorist attack of 9/11 happened. When the terrorist attack occurred, many immigrants didn't feel safe entering the U.S., so the Untied States had to make a change in the airport security. Statistics can help explain the significance of historic events because they show how much our country was truly affected and how our country has either improved or worsened since the event has happened. They can also help countries make changes in what they should do to improve their countries. Example: When HIV/AIDS was recognized, Africa's HIV/AIDS population went off the charts. This showed that Africa needs doctors, money, and help in their country. Without statistics, Africa would have never known about the huge HIV/AIDS break out in their country.