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Q: How variable are the densities of the lanthanides of the lanthanides compared to the densities of the actinides?
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What is a the difference between a control and a variable?

A control is the standard to which an outcome of an experiment is compared, but a variable is something in an experiment that can change.


Density of lubricating oil?

It is necessary to specify a lubricant; densities are very variable - as a rule approx. 0,9 g/cm3.


Changes occur during an experiment are compared with a?

control


What is the definition for ordered variable?

Ordered Variable is one where you can put the data into order, bt not give it an actual number. The height of a person compared to other's height is an ordered variable.


What Compared to diagrams and equations tables are always the best way to find a variable?

True


What is the scientific definition of a control variable?

A controlled variables are what stayed the same and is compared to other variables


What is the name of the variable that the scientist controls in an experiment?

Control group or mean- it is the point to which variances will be compared


What does test variable mean?

A Test Variable(s): The variable whose mean will be compared to the hypothesized population mean (i.e., Test Value). You may run multiple One Sample t Tests simultaneously by selecting more than one test variable. Each variable will be compared to the same Test Value. In simple terms, a variable represents a measurable attribute that changes or varies across the experiment whether comparing results between multiple groups, multiple people or even when using a single person in an experiment conducted over time.


What is ordered variable?

An ordered variable is one where you can put the data into order, but not give it an actual number. The height of plants compared to each other is an ordered variable, e.g the plants growing in the woodland are taller than those on the open field.


What is the difference between a dependant and independent variable in an experiment?

The independent variable is what you did differently in the experiment compared to the controlled experiment; it's also called manipulated variable. The dependent variable is what changed in the experiment as a result of the independent variable; it's also called the responding variable x hope this helps :)


Why is it necessary to have an independent variable that is changed by the experimenter during an experiment?

The independent variable is changed by the experimenter so that the results can be compared to the control, which does not change. Any differences between the control and experimental group are due to the independent variable. cw: As written, you don't.


What are the index variable in the for loop?

The for loop uses a counter or an index variable to loop through the statements. This variable is used through the loop, changed and finally compared with the loop condition for consideration of the loop's next cycle. The variable(s) used inside the for loop for comparison (with the mentioned condition) and increment/decrement is know as the index variable. for example (Java) : for(int i=1; i<5; i++){ ... } in this example, integer 'i' is the index variable.