If someone estimates the likelihood of events based on the ease with which they retrieve them from memory, they presume such events are common. this is called the

Answer is availability heuristic.

Explanation:

Heuristic is explained or described as an approach or method of solving problems through application of practical methods, though may not be perfect, but at least will be useful at that particular moment.

Availability heuristic, as one of the types of heuristic , can be described as a situation where an example that first come to mind on an issue or event is use to evaluate or solve a problem, or make an immediate decision. This might not be accurate or perfect, but useful at the time.

Another type or example of heuristic is representativeness heuristic.

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;

1. artillery

2. jose san martin

3.their economies remained dependent on outside powers.

4. drafted new economies

5. democracies have replaced dictatorships