[ 1 syll. jac(k), ja-ck ] The baby boy name Jack is also used as a girl name, but it is much more common for boys. Its pronunciation is JHAHK â . Jack is largely used in the English and Dutch languages, and its origin is English and Hebrew.
The control variable strongly influences experimental results, and it is held constant during the experiment in order to test the relative relationship of the dependent and independent variables. The control variable itself is not of primary interest to the experimenter.
They are not always necessary, but they are a function of control. They put the control in the hands of the object to manipulate a variable in a controlled manor, which may also require mutexes where threading is concerned or other activity hidden behind the scenes.