Assertion: sample's number | /r/CapableOf | use each hotel's number of rooms
Facets:
value: as an auxiliary variable
type: MANNER
Source sentences:
text: PPS sampling is commonly used for surveys of businesses, where element size varies greatly and auxiliary information is often available – for instance, a survey attempting to measure the number of guest-nights spent in hotels might use each hotel's number of rooms as an auxiliary variable.