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Algorithms for calculating variance
Algorithms for calculating variance play a major role in computational statistics. A key difficulty in the design of good algorithms for this problem is that formulas for the variance may involve sums of squares, which can lead to numerical instability as well as to arithmetic overflow when dealing with large values.
In statistics, a moving average (rolling average or running average) is a calculation to analyze data points by creating a series of averages of different subsets of the full data set. It is also called a moving mean (MM) or rolling mean and is a type of finite impulse response filter. Variations include: simple, and cumulative, or weighted forms (described below).
Wikipedia ( (listen) wik-ih-PEE-dee-ə or (listen) wik-ee-PEE-dee-ə) is a multilingual online encyclopedia created and maintained as an open collaboration project using a wiki-based editing system. It is the largest and most popular general reference work on the World Wide Web, and is one of the most popular websites ranked by Alexa as of June 2019.
It Chapter Two is a 2019 American supernatural horror film and the sequel to the 2017 film It, both based on the 1986 novel It by Stephen King. The film is directed by Andy Muschietti and written by Gary Dauberman. Set in 2016, 27 years after the events depicted in the first film, it stars Bill Skarsgård, returning as Pennywise the Dancing Clown.
2019 FIBA Basketball World Cup
The 2019 FIBA Basketball World Cup is the 18th tournament of the FIBA Basketball World Cup for men's national basketball teams. The tournament is hosted in China and was rescheduled from 2018 to 2019, becoming the first since 1967 that will not occur in the same year as the FIFA World Cup (which was held the previous year). The group stage is expanded from 24 to 32 teams.
Hurricane Dorian is a strong tropical cyclone currently affecting the Bahamas and the Southeastern United States coastline. The fourth named storm, second hurricane, and first major hurricane of the 2019 Atlantic hurricane season, Dorian developed from a tropical wave on August 24 in the Central Atlantic.
The Jallianwala Bagh massacre, also known as the Amritsar massacre, took place on 13 April 1919 when Acting Brigadier-General Reginald Dyer ordered troops of the British Indian Army to fire their rifles into a crowd of unarmed civilians in Jallianwala Bagh, Amritsar, Punjab, killing at least 400, including 41 children, one only six weeks old. Over 1,000 were injured.
The following deaths of notable individuals occurred in 2019. Names are reported under the date of death, in alphabetical order by surname or pseudonym. A typical entry reports information in the following sequence: Name, age, country of citizenship at birth, subsequent nationality (if applicable), what subject was noted for, cause of death (if known), and reference.
A lithopedion – also spelled lithopaedion or lithopædion – (Ancient Greek: λίθος = stone; Ancient Greek: παιδίον = small child, infant), or stone baby, is a rare phenomenon which occurs most commonly when a fetus dies during an abdominal pregnancy, is too large to be reabsorbed by the body, and calcifies on the outside as part of a foreign body reaction, shielding the mother's body from the dead tissue of the fetus and preventing infection.
Roger Federer (German pronunciation: [ˈrɔdʒər ˈfeːdərər]; born 8 August 1981) is a Swiss professional tennis player who is currently ranked world No. 3 in men's singles tennis by the Association of Tennis Professionals (ATP). He has won 20 Grand Slam singles titles—the most in history by a male player—and has held the world No.
Sir Arthur Nicholas Winston Soames (born 12 February 1948), sometimes known as Nick Soames, is a British politician serving as the Member of Parliament (MP) for Mid Sussex since 1997. He was first elected to Parliament in 1983 for Crawley and sat as a Conservative until 3 September 2019 when Soames had the Conservative whip removed after voting against the government.
Jacob William Rees-Mogg (born 24 May 1969) is a British politician serving as Leader of the House of Commons and Lord President of the Council since 2019, and has served as Member of Parliament (MP) for North East Somerset since 2010. A member of the Conservative Party and the Cornerstone Group, Rees-Mogg is a social conservative and said to be contemptuous of his fellow MPs.
Alexander Boris de Pfeffel Johnson (; born 19 June 1964) is a British politician, serving as Prime Minister of the United Kingdom and Leader of the Conservative Party since July 2019. He has been Member of Parliament (MP) for Uxbridge and South Ruislip since 2015 and was previously MP for Henley from 2001 to 2008.
Sharon Rachel Osbourne (née Levy; born 9 October 1952) is an English media personality, businesswoman, television host, talent competition judge, music manager, live promoter, and author. She is the wife of heavy metal singer-songwriter Ozzy Osbourne and first came into public prominence after appearing on The Osbournes, a reality television show that followed her family's daily life.
Mindhunter is an American crime thriller television series created by Joe Penhall, based on the true-crime book Mindhunter: Inside the FBI's Elite Serial Crime Unit written by John E. Douglas and Mark Olshaker. The series is executive produced by Penhall, David Fincher, and Charlize Theron among others, and debuted worldwide on Netflix on October 13, 2017.
Teachers' Day is a special day for the appreciation of teachers, and may include celebrations to honor them for their special contributions in a particular field area, or the community in general. The idea of celebrating Teachers' Day took root in many countries during the 19th century; in most cases, they celebrate a local educator or an important milestone in education.
Carnival Row is an American neo-noir fantasy web television series created by René Echevarria and Travis Beacham that premiered on August 30, 2019 on Amazon Prime Video. The eight-episode series stars Orlando Bloom and Cara Delevingne. In July 2019, it was announced that Amazon had renewed the series for a second season.
The Dark Crystal: Age of Resistance
The Dark Crystal: Age of Resistance is an American dark fantasy/adventure web television series produced by Netflix and The Jim Henson Company. It is a prequel to the 1982 Jim Henson film The Dark Crystal. There are ten episodes and the series explores the world of Thra created for the original film.
Wayne Bertram Williams (born May 27, 1958) is an American murderer serving life imprisonment for the 1981 killing of two adult men in Atlanta, Georgia, and believed by police to be responsible for at least 23 of the 30 Atlanta murders of 1979–1981, or the Atlanta Child Murders. He was never tried for the child murders and continues to maintain his innocence.
Brexit (; a portmanteau of "British" and "exit") is the withdrawal of the United Kingdom (UK) from the European Union (EU). Following a referendum held on 23 June 2016 in which 51. 9 percent of those voting supported leaving the EU, the Government invoked Article 50 of the Treaty on European Union, starting a two-year process which was due to conclude with the UK's exit on 29 March 2019.
Once Upon a Time in Hollywood is a 2019 comedy-drama film written and directed by Quentin Tarantino. Produced by Columbia Pictures, Bona Film Group, Heyday Films, and Visiona Romantica and distributed by Sony Pictures Releasing, it is an international co-production between the United States and the United Kingdom.
2019 Hong Kong anti-extradition bill protests
The 2019 Hong Kong anti-extradition bill protests are a series of demonstrations in Hong Kong and solidarity protests in other cities which began with the aim of withdrawing an extradition bill proposed by the Hong Kong government.
Cara Jocelyn Delevingne ( KAH-rə DEL-ə-VEEN; born 12 August 1992) is an English model, singer, and actress. She signed with Storm Management after leaving school in 2009. Delevingne won Model of the Year at the British Fashion Awards in 2012 and 2014. Delevingne started her acting career with a minor role in the 2012 film adaptation of Anna Karenina.
Dominic Mckenzie Cummings (born 25 November 1971) is a British political strategist. From 2007 to 2014, he was a special adviser to the then Education Secretary, Michael Gove. In 2015–16, he was the campaign director of Vote Leave, an organisation opposed to continued UK membership of the European Union that took an active part in the 2016 referendum campaign on the subject.
Jojo Rabbit is an upcoming American black comedy-drama film written and directed by Taika Waititi, based on the book Caging Skies by Christine Leunens. The film stars Roman Griffin Davis, Thomasin McKenzie, Waititi, Rebel Wilson, Stephen Merchant, Alfie Allen, Sam Rockwell, and Scarlett Johansson. It will have its world premiere at the Toronto International Film Festival on September 8, 2019.
House of Commons of the United Kingdom
The House of Commons, officially the Honourable the Commons of the United Kingdom of Great Britain and Northern Ireland in Parliament assembled, is the lower house of the Parliament of the United Kingdom. Like the upper house, the House of Lords, it meets in the Palace of Westminster. Owing to shortage of space, its office accommodation extends into Portcullis House.
The 2019 US Open is the 139th edition of tennis' US Open and the fourth and final Grand Slam event of the year. It is being held on outdoor hard courts at the USTA Billie Jean King National Tennis Center in New York City. Novak Djokovic and Naomi Osaka were the men's and women's singles defending champions.
Charles Milles Manson (né Maddox, November 12, 1934 – November 19, 2017) was an American criminal and cult leader. In mid-1967, he formed what became known as the "Manson Family", a quasi-commune based in California. Manson's followers committed a series of nine murders at four locations in July and August 1969.
The sinking of MV Conception occurred on September 2, 2019, when the 75-foot (23 m) dive boat caught fire and eventually sank off the coast of Santa Cruz Island, California, United States. The boat was anchored in Platts Harbor, a small undeveloped bay on the north shore of the island, with over 30 passengers asleep below decks when fire broke out shortly after 3 a. m.
Joaquin Rafael Phoenix (; né Bottom; born October 28, 1974) is an American actor, producer, and activist. For his work as an actor, Phoenix has received a Grammy Award, a Golden Globe Award and three Academy Award nominations. Phoenix started acting in television series with his brother River Phoenix and sister Summer Phoenix.
It (retroactively known as It Chapter One) is a 2017 American supernatural horror film based on Stephen King's 1986 novel of the same name. Produced by New Line Cinema, RatPac-Dune Entertainment, KatzSmith Productions, Lin Pictures, Vertigo Entertainment, and distributed by Warner Bros. It is the second adaptation of the novel, following a 1990 miniseries.
The Dark Crystal is a 1982 puppet animated dark fantasy adventure film directed by Jim Henson and Frank Oz. It stars the voices of Stephen Garlick, Lisa Maxwell, Billie Whitelaw, Percy Edwards, and Barry Dennen. The film was produced by ITC Entertainment and Henson Associates and distributed by Universal Pictures.
David Khari Webber Chappelle (; born August 24, 1973) is an American stand-up comedian, actor, writer, and producer. Chappelle is the recipient of numerous accolades, including two Emmy Awards and two Grammy Awards. He is most known for his iconic and acclaimed satirical comedy sketch series Chappelle's Show (2003).
Freddie Mercury (born Farrokh Bulsara; 5 September 1946 – 24 November 1991) was a British singer, songwriter, record producer, and lead vocalist of the rock band Queen. Regarded as one of the greatest lead singers in the history of rock music, he was known for his flamboyant stage persona and four-octave vocal range.
Bad Boys for Life is an upcoming American action comedy film directed by Adil El Arbi and Bilall Fallah. It is a sequel to Bad Boys (1995) and Bad Boys II (2003) and the third installment in the Bad Boys franchise. The film stars Will Smith and Martin Lawrence reprising their roles as detectives Mike Lowrey and Marcus Burnett.
Novak Djokovic was the defending champion, but retired due to injury against Stan Wawrinka in the fourth round, after losing the first two sets. This was the first time since 2006 that Djokovic failed to reach the semifinals at the US Open (not counting the 2017 tournament, which he missed due to injury).
Ezekiel Elijah Elliott (born July 22, 1995) is an American football running back for the Dallas Cowboys of the National Football League (NFL). He played college football at Ohio State, where he earned second-team All-America honors in 2015. He was drafted by the Cowboys fourth overall in the 2016 NFL Draft.
List of Bollywood films of 2019
This is a list of Bollywood films that are scheduled to release in 2019.
Clash of Champions (2019) is an upcoming professional wrestling pay-per-view and WWE Network event produced by WWE for their Raw, SmackDown, and 205 Live brands. It will take place on September 15, 2019, at Spectrum Center in Charlotte, North Carolina. It will be the third event under the Clash of Champions chronology and will feature the finals of the 2019 King of the Ring tournament.
Edmund Emil Kemper III (born December 18, 1948) is an American serial killer and necrophile who murdered ten people, including his paternal grandparents and mother. He is noted for his large size, at 6 feet 9 inches (2. 06 m), and for his high IQ, at 145. Kemper was nicknamed the "Co-ed Killer" as most of his victims were students at co-educational institutions.
Billie Eilish Pirate Baird O'Connell (; born December 18, 2001) is an American singer-songwriter, model and dancer. Born and raised in Highland Park, Los Angeles, she began singing at a young age. She gained a following in 2016 when she released her single "Ocean Eyes" on audio distribution platform SoundCloud, subsequently released on the record labels Darkroom and Interscope Records.
Xenophobia is the fear or hatred of that which is perceived to be foreign or strange. Xenophobia can involve perceptions of an ingroup toward an outgroup and can manifest itself in suspicion of the activities of others, and a desire to eliminate their presence to secure a presumed purity and may relate to a fear of losing national, ethnic or racial identity.
Opinion polling for the next United Kingdom general election
In the run-up to the next United Kingdom general election, various organisations are expected to carry out opinion polling to gauge voting intentions. Results of such polls are displayed in this list. Most of the pollsters listed are members of the British Polling Council (BPC) and abide by its disclosure rules.
Rajkumari Bibiji Amrit Kaur DStJ (2 February 1889 – 6 February 1964) was the first health minister of India and served for ten years in the capacity. She was an eminent Gandhian, a freedom fighter, and a social activist. Kaur was also a member of the Constituent Assembly, the body that framed the constitution of India.
2019 Atlantic hurricane season
The 2019 Atlantic hurricane season is an ongoing event in the annual formation of tropical cyclones in the Northern Hemisphere. The season officially began on June 1, 2019, and will end on November 30, 2019. These dates historically describe the period each year when most tropical cyclones form in the Atlantic basin and are adopted by convention.
Beyoncé Giselle Knowles-Carter ( bee-YON-say; born September 4, 1981) is an American singer, songwriter and actress. Born and raised in Houston, Texas, Beyoncé performed in various singing and dancing competitions as a child. She rose to fame in the late 1990s as lead singer of the R&B girl-group Destiny's Child, one of the best-selling girl groups in history.
Kristen Jaymes Stewart (born April 9, 1990) is an American actress and director. She is the recipient of several accolades, including a César Award, which she was the first American actress to win. Her films have grossed over $4. 3 billion worldwide, and she was the highest-paid actress in the world in 2010 and 2012.
Avengers: Endgame is a 2019 American superhero film based on the Marvel Comics superhero team the Avengers, produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures. It is the sequel to 2012's The Avengers, 2015's Avengers: Age of Ultron, and 2018's Avengers: Infinity War, and the twenty-second film in the Marvel Cinematic Universe (MCU).
Dark Phoenix (also known as X-Men: Dark Phoenix) is a 2019 American superhero film based on the Marvel Comics X-Men characters, produced by 20th Century Fox and distributed by Walt Disney Studios Motion Pictures. It is the twelfth installment of the X-Men film series, and the sequel to 2016's X-Men: Apocalypse.
YouTube is an American video-sharing website headquartered in San Bruno, California. Three former PayPal employees—Chad Hurley, Steve Chen, and Jawed Karim—created the service in February 2005. Google bought the site in November 2006 for US$1. 65 billion; YouTube now operates as one of Google's subsidiaries.
Luke Michael Willson (born January 15, 1990) is a Canadian professional American football tight end who is currently a free agent. He was selected by the Seattle Seahawks in the fifth round of the 2013 NFL Draft out of Rice University. He was previously selected by the Toronto Argonauts in the 2012 CFL Draft, but did not sign.
The BBC World Service, is the world's largest international broadcaster, which broadcasts radio and television news, speech and discussions in more than 40 languages to many parts of the world on analogue and digital shortwave platforms, internet streaming, podcasting, satellite, DAB, FM and MW relays.
F5 Networks, Inc. is a global company that specializes in application services and application delivery networking (ADN). F5 technologies focus on the delivery, security, performance, and availability of web applications, as well as the availability of servers, cloud resources, data storage devices, and other networking components.
A whip is an official of a political party whose task is to ensure party discipline in a legislature. This usually means ensuring that members of the party vote according to the party platform, rather than according to their own individual ideology or the will of their constituents. Whips are the party's "enforcers".
Khabib Abdulmanapovich Nurmagomedov (Russian: Хабиб Абдулманапович Нурмагомедов, [xɐˈbip ɐbˌdʊlmɐˈnapəvɪt͡ɕ nʊrmɐɡɐˈmʲɛdəf]; Avar: ХIабиб ГӀабдулманапил НурмухӀамадов; born 20 September 1988) is a Russian professional mixed martial artist. He is a two-time Combat Sambo World Champion and the reigning UFC Lightweight Champion.
List of highest-grossing Indian films
This is a ranking of the highest grossing Indian films which includes films from various languages based on the conservative global box office estimates as reported by reputable sources. There is no official tracking of domestic box office figures within India, and Indian sites publishing data are frequently pressured to increase their domestic box office estimates.
Orlando Jonathan Blanchard Bloom (born 13 January 1977) is an English actor. After making his breakthrough as Legolas in The Lord of the Rings film series, he rose to fame by further appearing in epic fantasy, historical epic, and fantasy adventure films. He later reprised his role as Legolas in The Hobbit film series.
Sir Winston Leonard Spencer-Churchill (30 November 1874 – 24 January 1965) was a British politician, army officer, and writer. He was Prime Minister of the United Kingdom from 1940 to 1945, when he led Britain to victory in the Second World War, and again from 1951 to 1955. Churchill represented five constituencies during his career as a Member of Parliament (MP).
Angel Has Fallen is a 2019 American action thriller film directed by Ric Roman Waugh. It is the third installment in the Fallen film series, following Olympus Has Fallen (2013) and London Has Fallen (2016). The film stars Gerard Butler, Morgan Freeman, Jada Pinkett Smith, Lance Reddick, Tim Blake Nelson, Piper Perabo, Nick Nolte, and Danny Huston.
Just Mercy is an upcoming American biographical drama film directed by Destin Daniel Cretton, based on the memoir by Bryan Stevenson and stars Michael B. Jordan, Jamie Foxx, Rob Morgan, Tim Blake Nelson, Rafe Spall, and Brie Larson. It will have its world premiere at the Toronto International Film Festival on September 6, 2019. It is scheduled to be released on December 25, 2019, by Warner Bros.
South Park is an American adult animated sitcom created by Trey Parker and Matt Stone and developed by Brian Graden for the Comedy Central television network. The show revolves around four boys—Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormick—and their exploits in and around the titular Colorado town.
Storm Area 51, They Can't Stop All of Us
Storm Area 51, They Can't Stop All of Us is an American Facebook event currently planned for September 20, 2019 at Area 51, a United States Air Force (USAF) facility within the Nevada Test and Training Range, to raid the site in search for extraterrestrial life.
Alexander Paul Coe (born 4 September 1969), known mononymously as Sasha, is a Welsh DJ and record producer. He is best known for his live events and electronic music as a solo artist, as well as his collaborations with British DJ John Digweed as Sasha & John Digweed. He was voted World No. 1 DJ in 2000 in a poll conducted by DJ Magazine.
The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends. The seven rows of the table, called periods, generally have metals on the left and non-metals on the right.