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2. Coupon - Wikipedia

   en.wikipedia.org/wiki/Coupon

   Believed to be the first coupon ever, this ticket for a free glass of Coca-Cola was first distributed in 1888 to help promote the drink. By 1913, the company had redeemed 8.5 million tickets. [6] Coca-Cola's 1888-issued "free glass of" is the earliest documented coupon. [6] [7] Coupons were mailed to potential customers and placed in magazines ...

3. Coupon collector's problem - Wikipedia

   en.wikipedia.org/wiki/Coupon_collector's_problem

   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 ...

4. 15 Percent Pledge - Wikipedia

   en.wikipedia.org/wiki/15_Percent_Pledge

   15 Percent Pledge. The 15 Percent Pledge is a US-based non-profit organization that encourages retailers to pledge at least 15 percent of their shelf-space to Black -owned businesses. The foundation conducts audits, shares its database of Black-owned businesses, and offers business development strategies to participating companies.

5. Alibaba Group - Wikipedia

   en.wikipedia.org/wiki/Alibaba_Group

   The four sets of bonds were $1.5 billion of both 10-year and 30-year debt along with $1 billion of bonds due in 20 and 40 years. The 20-year bonds were designated as sustainability notes. [61] [62] [63]

6. Coupon (finance) - Wikipedia

   en.wikipedia.org/wiki/Coupon_(finance)

   Coupon (finance) In finance, a coupon is the interest payment received by a bondholder from the date of issuance until the date of maturity of a bond. [1] Coupons are normally described in terms of the "coupon rate", which is calculated by adding the sum of coupons paid per year and dividing it by the bond's face value. [2]

7. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...