The __________ problem occurs when people fail to join a group because they can receive the benefits the group offers without contributing to the group's efforts

Pluralism is designed to __________

a. reduce the number of decision-makers b. make the theory of democracy more realistic c. achieve equality of opportunity and outcome d. ensure that majority preferences always prevail

A __________ is a type of bar graph in which the height and area of the bars are proportional to the frequencies in each category of a nominal variable or in intervals of a continuous variable.

Fill in the blank(s) with the appropriate word(s).