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If a data distribution is approximately normal then about 68 percent of the data values are within one standard deviation of the mean (mathematically, μ ± σ, where μ is the arithmetic mean), about 95 percent are within two standard deviations (μ ± 2σ), and about 99.7 percent lie within three standard deviations (μ ± 3σ).
As of fall 2010, the racial makeup of the Penn State system including all campuses and special-mission colleges, was 75.4 percent white, 5.5 percent black, 4.3 percent Asian, 4.4 percent Hispanic, 0.2 percent Native American, 0.1 percent Native Hawaiian/Pacific Islander, 1.7 percent two or more races, 5.8 percent international students and 3.1 ...
The use of class rank is currently in practice at about less than half of American high schools. [1] Large public schools are more likely to rank their students than small private schools. [1]
In South Africa, some universities follow a model based on the British system. Thus, at the University of Cape Town and the University of South Africa (Poes), the percentages are calibrated as follows: a first-class pass is given for oues that know their work and above, a second (division one) for oues that know some stuff, a second (division two) for 60–69%, and a third for 50–59%.
Below is the grading system found to be most commonly used in United States public high schools, according to the 2009 High School Transcript Study. [2] This is the most used grading system; however, there are some schools that use an edited version of the college system, which means 89.5 or above becomes an A average, 79.5 becomes a B, and so on.
In the case of mean income, the income of all households is divided by the number of all households. [33] The mean income is more affected by the relatively unequal distribution of income which tilts towards the top. [34] As a result, the mean income in the United States is higher than the median income, with the top earning households boosting it.
Following the fires, the School of Mines enrollment grew, consisting of prospectors and mine owners. A school library was established with $250, and a gymnasium was built to support the growing student body. The school's fight song, "The Mining Engineer", the first two verses of which are still sung today, was established on campus by 1885. [9]
For example, in the range of normal temperatures, air at 68 °F (20 °C) and 50% relative humidity will become saturated if cooled to 50 °F (10 °C), its dew point, and 41 °F (5 °C) air at 80% relative humidity warmed to 68 °F (20 °C) will have a relative humidity of only 29% and feel dry.