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Data (/ ˈ d eɪ t ə / DAY-tə, US also / ˈ d æ t ə / DAT-ə) are a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally.
In Figure 1, the consumer would rather be on I 3 than I 2, and would rather be on I 2 than I 1, but does not care where he/she is on a given indifference curve. The slope of an indifference curve (in absolute value), known by economists as the marginal rate of substitution , shows the rate at which consumers are willing to give up one good in ...
Market research is an organized effort to gather information about target markets and customers. It involves understanding who they are and what they need. [1] It is an important component of business strategy [2] and a major factor in maintaining competitiveness.
Inflation can obscure quantitative assessments of the true cost of living, as published price indices only look at data in retrospect, so may increase only months later. Monetary inflation can become hyperinflation if monetary authorities fail to fund increasing government expenses from taxes , government debt , cost cutting, or by other means ...
3 is the number of non-collinear points needed to determine a plane, a circle, and a parabola. There are only three distinct 4×4 panmagic squares . Three of the five Platonic solids have triangular faces – the tetrahedron , the octahedron , and the icosahedron .
Data quality assurance is the process of data profiling to discover inconsistencies and other anomalies in the data, as well as performing data cleansing [17] [18] activities (e.g. removing outliers, missing data interpolation) to improve the data quality.
Data collection and validation consist of four steps when it involves taking a census and seven steps when it involves sampling. [3] A formal data collection process is necessary, as it ensures that the data gathered are both defined and accurate. This way, subsequent decisions based on arguments embodied in the findings are made using valid ...
Data warehouses are designed to manage and store the data. Data warehouses differ from business intelligence (BI) systems because BI systems are designed to use data to create reports and analyze the information, to provide strategic guidance to management. [90] Metadata is an important tool in how data is stored in data warehouses.