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Date: 24-1-2017
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Date: 17-4-2017
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Date: 24-6-2017
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Precision
Precision describes the reproducibility of measurements in other words, the closeness of results that have been obtained in exactly the same way. Generally, the precision of a measurement is readily determined by simply repeating the measurement on replicate samples.
Three terms are widely used to describe the precision of a set of replicate data: standard deviation, variance, and coefficient of variation. These three are functions of how much an individual result xi differs from the mean, called the deviation from the mean di.
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للعاملين في الليل.. حيلة صحية تجنبكم خطر هذا النوع من العمل
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"ناسا" تحتفي برائد الفضاء السوفياتي يوري غاغارين
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ملاكات العتبة العباسية المقدسة تُنهي أعمال غسل حرم مرقد أبي الفضل العباس (عليه السلام) وفرشه
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