By Ashley Crossman. 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.
The estimated number of deaths is 150-300,000, mainly Jews. Chelmno, also known as Kulmhof, was a small town roughly 50 miles from the city of Lodz. It was here that the first mass killings of Jews by gas took place as part of the Final Solution.. The murder process was set up by a Sonderkommando, under the command of Herbert Lange.
Auschwitz (all sections combined with sub-camps) had a death toll of at least 1.1 million, of whom 90% were Jews.  * Treblinka II had death toll of 870,000 +  * Belzec-dea â¦ th toll of 434,508 Jews and an unknown number of gypsies. death toll is how many people died in a certain event. For instance, the death toll for the Black Saturday bushfires in Victoria was 173 because that many people died.