mathematics

Signy Arctander

Signy Arctander is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Signy Arctander rather than just read about it. In short: Signy Arctander (26 October 1895 – 23 September 1971) was a Norwegian statistician and economist. She worked for Statistics Norway from 1920 until her retirement in 1965, and from 1960 to 1963 was acting director.

Key takeaways

Signy Arctander belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Signy Arctander to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Signy Arctander from memory before moving on to harder problems.

Reference excerpt

Signy Arctander (26 October 1895 – 23 September 1971) was a Norwegian statistician and economist. She worked for Statistics Norway from 1920 until her retirement in 1965, and from 1960 to 1963 was acting director. Arctander studied and published on issues such as variation in social conditions across Norway and the participation of women in the workforce. Among her research works are Miljøundersøkelse for Oslo from 1928, two reports on the situation of children, and the study Arbeidsvilkår for hushjelp from 1937. She was decorated Knight, First Class of the Order of St. Olav in 1966.

Biography Arctander was born in Bergen, a daughter of politician Sofus Arctander and Maren Sofie Aars (1849–1940). She grew up in Kristiania, and took her artium exam in 1915. She then studied economics at the university. Arctander became a cand.oecon. in 1919, and in 1922 studied statistics in Munich and Copenhagen with a public scholarship. Arctander was a member of the Kameratklubben, which aimed to improve understanding between working women and women students. Arctander led the association for some years, and in 1937 wrote an account of their first 25 years. She was also active in the Norwegian Association for Social Work. During the Second World War, Arctander was recruited to the resistance by Gunnar John, the bureau's director. She was imprisoned in 1944 and held at Grini detention camp until Norway's liberation. Arctander was a statistician and economist. She was appointed at Statistics Norway from 1920, originally as a secretary, and worked for this institution until her retirement in 1965; from 1960 to 1963 as acting director. She was at that time Norway's highest ranking woman civil servant. Arctander studied and published on issues such as variation in social conditions across Norway and the participation of women in the workforce. Among her research works are Miljøundersøkelse for Oslo from 1928, two reports on the situation of children, and the study Arbeidsvilkår for hushjelp from 1937. She was decorated Knight, First Class of the Order of St. Olav in 1966. She died in Oslo in 1975, aged 75. A house at Pilestredet 40 in Oslo is named for her.

References

Illustrations

Worked examples

Example 1 — a first encounter with Signy Arctander

Start with the simplest possible case. Write down what Signy Arctander claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Signy Arctander before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Signy Arctander ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Signy Arctander

In research: Signy Arctander appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Signy Arctander in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Signy Arctander is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1895 births, 1971 deaths, 20th-century statisticians, so understanding it makes those chapters shorter.
In everyday life: Look for Signy Arctander outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Signy Arctander in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Signy Arctander means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Signy Arctander out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Signy Arctander in simple terms?

Why does Signy Arctander matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Signy Arctander?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Signy Arctander.