Robuta

https://www.ons.gov.uk/economy/inflationandpriceindices/articles/usingstatisticaldistributionstoestimateweightsforwebscrapedpricequotesinconsumerpricestatistics/previousreleases
Feasibility of predicting sales quantities from product ranks, for potential use with web-scraped data in consumer price statistics.
statistical distributionspreviousreleasesusingestimate
https://www.boost.org/doc/libs/1_54_0/libs/math/doc/html/dist.html
statistical distributionschapterfunctions
https://www.xycoon.com/tri_mode.htm
Scientific website about: forecasting, econometrics, statistics, and online applications.
statistical distributionstriangularmode