Definition: A control variable is a variable that is held constant in a research analysis.The use of control variables is generally done to answer four basic kinds of questions: 1.Is an observed relationship between two variables just a statistical accident? 2.efinition: A control variable is a variable that is held constant in a research analysis.
How Many People Died At Pearl Harbor. Those who have read about American history are acquainted with Japanese attacking the US naval base located at Pearl Harbor on 7th December 1941. The Americans were attacked unaware, without any warning by Japan. This resulted in loss of lives of 2,402 Americans and left around 1282 people injured.
So exactly how many Pearl Harbor deaths were there? Keep reading to learn more about the deadliest parts of the attack and the survivors who became heroes. The Count of Pearl Harbor Deaths. Officially, it is estimated that 2,335 military personnel were killed on that terrible day. The number breaks down as such: 2,008 naval men; 109 Marines; 218 army men