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The negative predictive value is defined as: = + = where a "true negative" is the event that the test makes a negative prediction, and the subject has a negative result under the gold standard, and a "false negative" is the event that the test makes a negative prediction, and the subject has a positive result under the gold standard.
In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.
The plus sign (+) and the minus sign (−) are mathematical symbols used to denote positive and negative functions, respectively. In addition, + represents the operation of addition, which results in a sum, while − represents subtraction, resulting in a difference. [1] Their use has been extended to many other meanings, more or less analogous.
Negative numbers are often used to represent the magnitude of a loss or deficiency. A debt that is owed may be thought of as a negative asset. If a quantity, such as the charge on an electron, may have either of two opposite senses, then one may choose to distinguish between those senses—perhaps arbitrarily—as positive and negative.
Three people were shot and one person was stabbed following what authorities believe to be a family dispute at a restaurant in the Phoenix Sky Harbor International Airport.
“Grew up off grid, and hot water from the tap meant you had to have the water pump working and you had to have water in the catchment. Plus propane for the water heater, so hot water wasn’t a ...
Negative result may refer to: Proof of impossibility, a proof that a particular problem cannot be solved; Null result, a result which shows no evidence of the intended effect; Null hypothesis, a hypothesis that there is no relationship between two measured phenomena
The US Justice Department has entered a court-enforceable agreement with Georgia’s Fulton County over jail conditions that federal investigators have described as inhumane, violent and unsanitary.