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Coupon. In marketing, a coupon is a ticket or document that can be redeemed for a financial discount or rebate when purchasing a product . Customarily, coupons are issued by manufacturers of consumer packaged goods [1] or by retailers, to be used in retail stores as a part of sales promotions. They are often widely distributed through mail ...
Coupon collector's problem. In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more ...
PromotionCode.org is a free resource for online shoppers and maintains affiliate partnerships with major retailers such as Target, Wal-Mart, HP and Verizon. The site both originates and disseminates print coupons and online promotion codes. PromotionCode.org maintains a community of shoppers that exchange user-submitted codes and a codes-by ...
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A susu or sou-sou or osusu or asue (also known as a merry-go-round, [1] Partner, or Pawdna in Jamaica; [2] sol in Haiti; [3], san in Dominican Republic, [4] and Njangi in Cameroon [5]) is a form of rotating savings and credit association, a type of informal savings club arrangement between a small group of people who take turns by throwing hand as the partners call it.
A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode ...
See the ISO 3166-3 standard for former country codes. British Virgin Islands – See Virgin Islands (British) . Burma – See Myanmar . Cape Verde – See Cabo Verde . Caribbean Netherlands – See Bonaire, Sint Eustatius and Saba . China, The Republic of – See Taiwan (Province of China) . Democratic People's Republic of Korea – See Korea ...
Special unitary group. In mathematics, the special unitary group of degree n, denoted SU (n), is the Lie group of n × n unitary matrices with determinant 1. The matrices of the more general unitary group may have complex determinants with absolute value 1, rather than real 1 in the special case. The group operation is matrix multiplication.