In simple words, The non probability sampling refers to the sampling methods that really aren't designed to be utilized in terms of statistics to deduce from its sample to the general population. Conversely, theoretical framework can be produced by iterative non probability sampling, for instance, there till saturation point is achieved.
Such sampling techniques are highly preferred when the population is low in numbers and do not take much time to collect data from. The conclusions from such data is usually better than other techniques.
Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate. (Usually an act is passed with a simple majority.) This check prevents the President from blocking an act when significant support for it exists.
