Smithers thinks that a special juice will increase the productivity of workers ,he creates two groups of 50 workers each each group the same task in this case they're supposed to staple a set of paper group is given the special juice and he is not after all our smith has caused how many stacks of paper each group has made group a as made 1587 and ruby has made 2113 identify the independent variable the dependent variable and a control variable and what would be the conclusion

the answer for sodium is 0.186

the answer for rubidium is 0.251

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.