This example illustrates the use of regression analysis in a simple random cluster sampling design. The data are from S rndal, Swenson, and Wretman (1992, p. 652). A total of 284 Swedish ...

A supermassive black hole is reawakening inside a distant galaxy cluster—and after almost 100 million years of slumber, ...

A globular cluster near the heart of the Milky Way is gradually dissolving, according to a new study published on arXiv, ...

Deep in the cosmos, about a billion light-years away, a monster with a gargantuan appetite has woken up. For roughly 100 ...

One of the most vivid portraits of "reborn" black hole activity—likened to the eruption of a "cosmic volcano" spreading ...

Astronomers have made an extraordinary discovery in the galaxyJ1007+3540, where a supermassive black hole has begun emitting ...

One of the most vivid portraits of “reborn” black hole activity – likened to the eruption of a “cosmic volcano” spreading almost one million light-years across space – has been captured in a gigantic ...

Buying a cheap old Mercedes-AMG can actually be a great move financially, but you need to know your models and have it ...

Cimulate and Bazaarvoice are helping retailers make PDPs machine-readable for AI discovery, improving shopper trust, ...

A systematic review of Long COVID identifies symptom clusters, highlighting fatigue and proposing a management framework for ...

How does the LG C5 compare to Samsung’s S90F model? Is it recommended for gaming? Find out all the answers and insights about ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...