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t. e. The Columbine High School massacre, commonly referred to as Columbine, was a school shooting and attempted bombing that occurred on April 20, 1999, at Columbine High School in Columbine, Colorado, United States. [b] The perpetrators, twelfth-grade students Eric Harris and Dylan Klebold, murdered twelve students and one teacher.
- 15 (including both perpetrators)
- Columbine, Colorado, U.S.
- April 20, 1999; 24 years ago, 11:19 a.m. – 12:08 p.m. (MDT)
- Eric Harris and Dylan Klebold
Main entrance of Camberwell High School, VIC, Australia A secondary school or high school is an institution that provides secondary education.Some secondary schools provide both lower secondary education (ages 11 to 14) and upper secondary education (ages 14 to 18), i.e., both levels 2 and 3 of the ISCED scale, but these can also be provided in separate schools.
Jontay Porter (born November 15, 1999) is an American professional basketball center and power forward who last played for the Toronto Raptors of the National Basketball Association (NBA). He played college basketball for the Missouri Tigers. Porter was previously listed as a recruit under the Class of 2018 before reclassifying up a year to ...
The sum of squares of residuals, also called the residual sum of squares: The total sum of squares (proportional to the variance of the data): The most general definition of the coefficient of determination is. In the best case, the modeled values exactly match the observed values, which results in and R2 = 1.
Jann Mardenborough (born 9 September 1991) is a British professional racing driver. In 2011 he became the third and youngest winner of the GT Academy competition, beating 90,000 entrants to earn a professional racing contract with Nissan. [2] He had no previous motorsport experience, having played sim racing video games instead.
Shohei Ohtani (大谷 翔平 (おおたに しょうへい), Ōtani Shōhei, [oːtaɲi ɕoːheː]; born July 5, 1994) is a Japanese professional baseball pitcher and designated hitter for the Los Angeles Dodgers of Major League Baseball (MLB). Nicknamed "Shotime", he has previously played in MLB for the Los Angeles Angels and the Hokkaido Nippon-Ham Fighters of Nippon Professional Baseball (NPB).
v. t. e. The Richter scale [1] ( / ˈrɪktər / ), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Francis Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it ...
