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In descriptive statistics, the range of a set of data is size of the narrowest interval which contains all the data. It is calculated as the difference between the largest and smallest values (also known as the sample maximum and minimum). [1] It is expressed in the same units as the data. The range provides an indication of statistical ...
However, given the true definition of availability, the system will be approximately 99.9% available, or three nines (8751 hours of available time out of 8760 hours per non-leap year). Also, systems experiencing performance problems are often deemed partially or entirely unavailable by users, even when the systems are continuing to function.
Response time is the total amount of time it takes to respond to a request for service. In computing, that service can be any unit of work from a simple disk IO to loading a complex web page. The response time is the sum of three numbers: [3] Service time - How long it takes to do the work requested.
Flextime, also spelled flex-time or flexitime (), is a flexible hours schedule that allows workers to alter their workday and adjust their start and finish times. [1] In contrast to traditional [2] work arrangements that require employees to work a standard 9 a.m. to 5 p.m. day, Flextime typically involves a "core" period of the day during which employees are required to be at work (e.g ...
The job length may depend on the start time of the job. [11] When the length is a weakly-increasing function of the start-time, it is deterioration effect; when it is weakly-decreasing, it is called learning effect. The job length may depend on the sum of normal processing times of previously-processed jobs. When the length is a weakly ...
The mean width is the average of this "width" over all ^ in . The definition of the "width" of body B in direction n ^ {\displaystyle {\hat {n}}} in 2 dimensions. More formally, define a compact body B as being equivalent to set of points in its interior plus the points on the boundary (here, points denote elements of R n {\displaystyle \mathbb ...
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A moving average is commonly used with time series data to smooth out short-term fluctuations and highlight longer-term trends or cycles - in this case the calculation is sometimes called a time average. The threshold between short-term and long-term depends on the application, and the parameters of the moving average will be set accordingly.