If you need help with your homework, try asking someone in your family to help you.
There's no "Limit", but the less you have, the better the experiment.
There are 3 different variable. The independent variable is what you will be changing in the experiment and there should only be one. The dependent variable is what you will be measuring or observing. The controlled variable is what you will be keeping the same and there can be more than one. There is no limit on how many controlled variables you can have.
There is no limit to the number of variables a formula can have.
There is no limit to the number of variables a formula can have.
Limit variables. Use accurate measuring equipment. Use multiple trials to obtain data that can be averaged. Observe intently.
There is no limit to the number of variables.
To understand this you need to remember that the independent variable is a condition that you can change, and the dependent variable is the outcome that you see. If you have two independent variables, and you change both during an experiment, how are you going to tell which one caused the change to the outcome? So, you only change one independent variable at a time.
Redi showed the need to limit/control outside variables when he covered 1/2 the jars and got different results than the uncovered.
T. V. Arak has written: 'Uniform limit theorems for sums of independent random variables' -- subject(s): Distribution (Probability theory), Limit theorems (Probability theory), Random variables, Sequences (Mathematics)
The Central Limit Theorem (abbreviated as CLT) states that random variables that are independent of each other will have a normally distributed mean.
Nixon
A parameter is a limit: could be a speed limit on the road. A variable is something that changes in the system: could be the actual speed of a car.