In a well-known study conducted in the 1950s, social psychologist leon festinger and colleagues analyzed the friendship patterns among graduate students living in one of the dormitories at mit. the researchers found that strongest predictor of friendship was
a. how extraverted the students were
b. similarity in terms of hobbies and activities
c. similarity in terms of basic demographics (age, gender, being single versus married, etc.)
d. how close the students lived to one another

The answer is  d. how close the students lived to one another.

Explanation:

Friendships were moke likely to start the closer people were physically, Festinger and his team found out. . A similar pattern was observed regarding attitudes; attitudes of dormitory residents showed a tendency to converge.

the answer is b: a lockout

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.