Inferential statistics refers to a type of statistics in which a sample of data or a limited amount of information is used to infer or predict preferences or features about a specific population. This implies, in inferential statistics, just one sample or part of the population is studied and the results of this sample are later applied to the whole population, this is the reason why it is called inferential statistics because it makes inferences or predictions on which the general result would be from a sample. Considering in the survey about Great Mountain High School Administration approval surveys where provided randomly and not to all the students and the result was generalized to all the population it can be concluded it was an inferential statistic.
The preposition 'since' always shows a time relationship from the past to the present. When you say 'since Monday' it means that he didn't have a car available from Monday until now.So, a time relatioship
