(philosophy) The difficulty of using statistical probability to evaluate the plausibility of a statement such as "the sun will rise tomorrow" based only on prior observations.

(mathematics) An infinite product that approximates half of pi: 𝜋/2=∏ₙ₌₁ ᪲(4n²)/(4n²-1)=∏ₙ₌₁ ᪲((2n)/(2n-1)·(2n)/(2n+1))\[6pt]= Big (2/1·2/3 Big )· Big (4/3·4/5 Big )· Big (6/5·6/7 Big )· Big (8/7·8/9 Big )·;⋯\.

Synonym of Newcomb's paradox

(statistics) The problem of interval estimation and hypothesis testing concerning the difference between the means of two normally distributed populations when the variances of the two populations are not assumed to be equal, based on two independent samples.

Synonym of boy or girl paradox

Synonym of boy or girl paradox

A puzzle of this kind: "You are given two indistinguishable envelopes, each containing money; one contains twice as much as the other. You may pick one envelope and keep the money it contains. Having chosen an envelope at will, but before inspecting it, you are given the chance to switch envelopes. Should you switch?" Because you stand to gain twice as much money if you switch while risking only a loss of half of what you currently have, it is possible to argue (fallaciously) that it is beneficial to switch.

An urge to gamble continuously despite negative consequences or a desire to stop.

(slang) A child with Asperger's syndrome.

an official list maintained by the land registry of land, buildings and their particulars.