The Lee family is looking to buy a house in one of two suburban areas just outside of a major city, and air quality is a top priority for them. Overall air quality is calculated by taking measures in 100 locations within each suburb and then calculating a measure of central tendency. In one suburb, there is a major bus station that creates very poor air quality at its location but has no impact in the surrounding parts of the suburb. In this situation, which measure of overall suburb air quality would be MOST useful?

The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.