Discover what quartiles are in statistics, how to calculate them, and see examples to help you interpret data more effectively. Learn about lower, median, and upper quartiles.

Breaking news and the latest headlines from the New York region, including New York City, Westchester, Long Island, New Jersey and Connecticut. Politics, transit, housing, crime and more.

Types of Production Costs Production incurs both fixed costs and variable costs. For example, fixed costs for manufacturing an automobile would include equipment and workers’ salaries.