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If there are an even number of data points in the original ordered data set, split this data set exactly in half. The lower quartile value is the median of the lower half of the data. The upper quartile value is the median of the upper half of the data. This rule is employed by the TI-83 calculator boxplot and "1-Var Stats" functions.
On 28 December 2012, Google celebrated his 160th birthday with a Google Doodle. [182] That same year the company had also commemorated the 100th anniversary of " El Ajedrecista ", highlighting that it was a marvel of its time and could be considered the "grandfather" of current video games.
For example, if the interest rate is 18%, the rule of 69.3 gives t = 3.85 years, which the E-M rule multiplies by (i.e. 200/ (200−18)) to give a doubling time of 4.23 years. As the actual doubling time at this rate is 4.19 years, the E-M rule thus gives a closer approximation than the rule of 72.
The Marine Corps Birthday is celebrated every year on 10 November in a cake-cutting ceremony where the first slice of cake is given to the oldest marine present, who in turn hands it off to the youngest marine present. The celebration includes a reading of Commandant Lejeune's Birthday Message. [146]
Srinivasa Ramanujan [a] (22 December 1887 – 26 April 1920) was an Indian mathematician.Though he had almost no formal training in pure mathematics, he made substantial contributions to mathematical analysis, number theory, infinite series, and continued fractions, including solutions to mathematical problems then considered unsolvable.
In 2009, the Indianapolis Motor Speedway began a three-year-long "Centennial Era" to celebrate the 100th anniversary of the opening of the track (1909), and the 100th anniversary of the first Indy 500 (1911). [39]
Johann Carl Friedrich Gauss (German: Gauß [kaʁl ˈfʁiːdʁɪç ˈɡaʊs] ⓘ; [2] [3] Latin: Carolus Fridericus Gauss; 30 April 1777 – 23 February 1855) was a German mathematician, astronomer, geodesist, and physicist who contributed to many fields in mathematics and science.
The Fiat 500 by Gucci was a version of the Fiat 500 celebrating 150 years since the unification of Italy and Gucci's 90th anniversary. Customized by Gucci Creative Director Frida Giannini in partnership with Fiat's Centro Stile, it included a choice of 2 body colours (black or white), custom wheels for 195/45 R16 tires, and a red and green ...