**Arnljot Høyland** was a Norwegian mathematical statistician who worked in reliability theory.

- His parents were Torleiv Høyland (1893-1989), a teacher, and Sigyn Tønnesdtr Husebø (1899-1994), a clerk.
- Torleiv Høyland was the author of the book Laerernes Kirkenesferd Ⓣ(The teachers' journey to Kirkenes) (1946).
- Torleiv Høyland was prisoner no 1850 there.
- Arnljot Høyland is internationally renowned for his work in mathematical statistics.
- They cooperated among other things on shows, and it was in this context that Høyland composed the melody Prøysen later used in his "Julekveldsvise".
- Because if this Høyland was interviewed several times on Norwegian television in the 1990s.
- Høyland completed his high school studies and took his matriculation examination in 1943.
- At this time Høyland was a sixteen year old schoolboy.
- However, Høyland completed his high school studies and took his matriculation examination in 1943.
- At the end of the war, in autumn 1945, Høyland began to study at the University of Oslo.
- Høyland was given some tests and then told he could start work.
- Høyland needed the money, so he accepted.
- This led to his mathematics studies at university, which Høyland completed while holding his position in the Intelligence Service, having a high component of mathematical statistics.
- He had written the works in Esperanto which Høyland had to read.
- As to his work with the Intelligence Service, Høyland says that 1948 was an exciting year.
- Høyland retired from the Norwegian Defence in 1954, having attained the rank of a major.
- David Blackwell was head of statistics at that time and he advised Høyland to register as a Ph.D. student.
- Lehmann was using the lectures he was giving as the basis for his famous book Testing Statistical Hypotheses (1959) and Høyland received a "thanks" in the Preface to the book for having worked through all the problems.
- Back in Norway, Høyland had difficulties because he was arguing for non-parametric statistics.
- After working as a lecturer at the University of Oslo from 1959 to 1965, Høyland was hired by the Norwegian Institute of Technology (NTH) in Trondheim as a senior lecturer in 1965 and later became a professor of mathematical statistics.
- Høyland was the first person who specialised in statistics that NTH hired.
- Høylands 2-volume textbook Sannsynlighetsregning og statistisk metodelaere Ⓣ(Probability and statistical methods), published in 1972-73, was compulsory reading for the students at NTH for over 20 years.
- When professor Høyland returned to NTNU (NTH at that time), he was very enthusiastic and wanted to start a course in reliability analysis at NTNU, using the book by Barlow and Proschan.
- Bent Natvig stayed only a short time and left NTNU during the summer of 1977 - so when the first ordinary course in reliability analysis was to be lectured, professor Høyland had to be the lecturer - with assistance from Marvin Rausand who took over Bent Natvig's position as an assistant professor.
- Høyland and Rausand were co-authors of an international textbook System Reliability Theory: Models and Statistics Methods (1994).
- Høyland was known for his cheerful spirit and his musicality.
- Arnljot Høyland was appointed Knight of First Class of the Order of St Olav in 1995.

Born 19 February 1924, Baerum, Norway. Died 21 December 2002, Trondheim, Norway.

View full biography at MacTutor

Origin Norway

**O’Connor, John J; Robertson, Edmund F**: MacTutor History of Mathematics Archive