The answer depends on the population and is described by the sampling distribution of the mean.
There are 25C7 different samples of seven from a pool of 25.25C7 = 25!/(7!(25-7)!) = 480 700 different samples of 7
Because they are based on samples and outcomes vary between different samples.
Experiment can be scientific or psychological. They can use samples and observations to gain insight or mix chemicals together to demonstrate reactions.
All people have different opinions, so you should probably buy some concealers and experiment with it. You may also go to sites which give out free makeup samples.
Yes, it is possible to order research samples online. Check out Central BioHub biospecimen marketplace for orders, reservation and quotes.
It is possible to get samples of business plans. Bplans are full of tips and offers free "How To's" and offers a video that guides you in writing your own plan. SBDC also gives out samples of business plans.
Why is it important to correctly construct the DNA model of the different samples?
There are 324,632 possible samples.
It could be many things such as temperature or pressure.
Different samples of a compound do not have different properties.
Choose the different brand you wish to use, such as pampers, and go on their website. There they will have a tab where you can order different samples, but you will not be able to order samples of all their products.
For maintaining reliability internally, a researcher will use as many repeat sample groups as possible, to reduce the chance of an abnormal sample group skewing the results. If you use three replicate samples for each manipulation, and one generates completely different results from the others, then there may be something wrong with the experiment.