Which of the following statement (s) is/are correct?

Statement 1: Some groups can have a large number of members like a country.

Statement 2: Groups can differ in duration ranging from short-lived ones to long-lasting.

Both statements are correct.

Groups exhibit various characteristics and can be classified into different types. They vary in size, with some having a large number of members like a country, while others are small like a family. Groups also differ in duration, ranging from short-lived ones such as committees to long-lasting religious groups. Some groups are highly organized, such as the army or police, while others, like spectators at a match, are informally organized. Individuals can belong to different types of groups, including primary and secondary groups, formal and informal groups, and ingroups and outgroups.