Asker's rating. 1  Adele Album Names. 2  In Adele's case, I wasn't aware, but it's simply the preference for some artists. 3  The age she is when album is produced. 4  yes its how old she was she recorded them. 5  she started writing/recording them at that age. 6  yeah age.
An observation is what you see. An inference is the conclusion you  draw from what you saw.   A common analogy;   You may be doing a chemistry experiment and when youâ¦ put two  substances together, the mixture bubbles and brown gas comes off.  You know that brown gas indicates nitrogen dioxide gas. The observation would be Mixture bubbles and brown gas is given off. The inference would be A gas is produced, nitrogen dioxide. Observations are things you use your five senses to determine - how something smells, looks, tastes, sounds, or feels.
The difference between an observational study and an experiment is that in an observational study, only one group is studied, and in an experiment, two groups are studied. in an observational study, the researchers do not control treatment, and in an experiment, they do. in an experiment, cause-and-effect is analyzed, and in an observational study, it is not. in an experiment, one group is studied over a short period of time, and in an observational study, the group is studied over a longer ...