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Youden's index is often used in conjunction with receiver operating characteristic (ROC) analysis. [3] The index is defined for all points of an ROC curve, and the maximum value of the index may be used as a criterion for selecting the optimum cut-off point when a diagnostic test gives a numeric rather than a dichotomous result.
Zhonghua Secondary School was established on 15 September 1911 as a Chinese-medium girls' school in response to Sun Yat-sen's suggestion for schools to be established for girls. It was the first Chinese-medium girls' school in Singapore, founded by Tay Peng Teng, Puan Yeow Pong and the Chinese community.
The campus on 369 Zhonghua Road, Nanjing, is now the campus for Nanjing Zhonghua Middle School. The high school section moved to 208 Xinglong Avenue in Hexi. Hexi campus is much larger than the old one and provides better facilities with 11 buildings including 60 classrooms and dorms that can host about 2,000 students.
The "3" and "X" are the same as the national "3+X" system, weighed at 750 points. The "Y" part consists of 18 questions, covering 9 subjects (Chinese, Maths, English, Physics, Chemistry, Biology, History, Politics, and Geography), from which students need to choose 6 questions to answer, weighed at 60 points. The total score is 810 points.
Zhonghua minzu, literally the Chinese nation; Little China (ideology), or "Xiao Zhonghua", conception of the political and cultural realm of China in the Sinosphere; A school in Singapore. See primary schools in Singapore. Chong Hua Hospital, a hospital in Cebu City, Philippines; Zamboanga Chong Hua High School, a school in Zamboanga City ...
Cutoff grade is the minimum grade required in order for a mineral or metal to be economically mined (or processed). Material found to be above this grade is considered to be ore, while material below this grade is considered to be waste.
The half-power point is the angle off boresight at which the antenna gain first falls to half power (approximately −3 dB) [a] from the peak. The angle between the −3 dB points is known as the half-power beam width (or simply beam width). [4] Beamwidth is usually but not always expressed in degrees and for the horizontal plane.
Sometimes other ratios are more convenient than the 3 dB point. For instance, in the case of the Chebyshev filter it is usual to define the cutoff frequency as the point after the last peak in the frequency response at which the level has fallen to the design value of the passband ripple. The amount of ripple in this class of filter can be set ...