
Projections are also used by businesses to help with strategic planning. This information can help policymakers make informed decisions about whether a policy is likely to be successful. For example, economists might use projections to estimate the impact of a new policy on the economy.

Projections are also used by governments to help inform policymaking. This can help individuals and businesses make informed decisions about things like budgeting and investing. Projections are also used in financial planning, where they can be used to estimate future income and expenses. Forecasting is a key part of making projections, and the two terms are often used interchangeably. Projections are often used in conjunction with forecasting, which is the process of using past data and trends to make predictions about the future. This can be done using a variety of methods, such as probability theory or decision analysis. Many projections are probabilistic, meaning that they involve estimating the likelihood of different outcomes. Trend projections assume that past trends will continue into the future, while scenario projections involve making a number of different guesses about what could happen. There are a variety of different types of projections, but most can be classified as either trend or scenario projections. Projections can be used to inform decisions about everything from business planning to public policy. They are often created by economists, analysts, and other professionals who use data and analysis to make informed guesses about the future. Projections are estimates of future events or trends.

The distance between each point and the median point is called the radius of the set. A convex hull is the shape that is formed by the points in a set that are all located within a certain distance of the median point of the set.
