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Accuracy is also used as a statistical measure of how well a binary classification test correctly identifies or excludes a condition. That is, the accuracy is the proportion of correct predictions (both true positives and true negatives) among the total number of cases examined. [10]
For this reason, Kirk Johnson and Leo Hickey divided it into five zones and described them as HCIa, HCIb, HCIIa, HCIIb, and HCIII as a reflection of floral change through time. [124] For example, the HCIa zone is dominated by "Dryophyllum" subfalcatum , Leepierceia preartocarpoides , "Vitis" stantonii , and "Celastrus" taurenensis , and is ...
NHTSA reports that the following blood alcohol levels (BAC) in a driver will have the following predictable effects on his or her ability to drive safely: (1) A BAC of .02 will result in a "[d]ecline in visual functions (rapid tracking of a moving target), a decline in the ability to perform two tasks at the same time (divided attention)"; (2 ...
Distilling water with commercial equipment will almost completely remove all dissolved minerals such as calcium, magnesium, sodium, fluoride, potassium, iron, and zinc leaving a TDS of <1PPM, and reduce its electrical conductivity to <2 μS/cm. Typical tap water has electrical conductivity in the range of 200–800 μS/cm.
San Francisco, [23] officially the City and County of San Francisco, is a commercial, financial, and cultural center within Northern California.With a population of 808,988 residents as of 2023, [14] San Francisco is the fourth-most populous city in the state of California and the 17th-most populous in the U.S.
If there are very deep cuts in emissions, sea level rise would slow between 2050 and 2100. It could then reach by 2100 between 30 cm (1 ft) and 1.0 m (3 + 1 ⁄ 3 ft) from now and approximately 60 cm (2 ft) to 130 cm (4 + 1 ⁄ 2 ft) from the 19th century. With high emissions it would instead accelerate further, and could rise by 50cm (1.6 ft ...
In Japanese, Kyoto was previously called Kyō (京), Miyako (都), Kyō no Miyako (京の都), and Keishi ().After becoming the capital of Japan at the start of the Heian period (794–1185), the city was often referred to as Heian-kyō (平安京, "Heian capital"), and late in the Heian period the city came to be widely referred to simply as "Kyōto" (京都, "capital city").