About: http://webisa.webdatacommons.org/415587262

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	For the pairs of identical pairs, the product is a square, and the square of an indicator variable is just the variable itself, so this expectation value is also $1/2$.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com