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2. 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 ...

3. Buy one, get one free - Wikipedia

   en.wikipedia.org/wiki/Buy_one,_get_one_free

   Buy one, get one free. " Buy one, get one free " or " two for the price of one " is a common form of sales promotion. Economist Alex Tabarrok has argued that the success of this promotion lies in the fact that consumers value the first unit significantly more than the second one. So compared to a seemingly equivalent "Half price off" promotion ...

4. Shoppers over 50 love this anti-aging retinol stick and today ...

   www.aol.com/lifestyle/shoppers-over-50-love-this...

   Velamo Advanced Retinol Eye Stick. $16 $30 Save $14. Shoppers in their 50s and 60s 'stick' it to dark circles and fine lines, thanks to this compact eye booster. $16 at Amazon.

5. Shop our favorite deals under $50 from Nordstrom's ... - AOL

   www.aol.com/lifestyle/shop-our-favorite-deals...

   The Nordstrom Anniversary Sale is in full swing and if you haven't shopped yet, there's still time. We combed through more than 5,000 items to find you the best deals under $50 — we're talking ...

6. Blue Apron's 4th of July sale has savings up to 50%: Try one ...

   www.aol.com/lifestyle/blue-aprons-4th-of-july...

   Right now, you can get 50% off an order placed for the first week of your Blue Apron meal kit subscription. We've done the testing and tried meal kits to fit all different diets and lifestyles ...

7. Academic grading in the Philippines - Wikipedia

   en.wikipedia.org/wiki/Academic_grading_in_the...

   New Zealand. Papua New Guinea. v. t. e. In the Philippines, some universities follow a 4-Point Scale, which resembles or is equivalent to the U.S. grading system. This system uses a grade between 0.00 to 4.00 wherein 4.00 is the highest and 0.00 being a failing mark. Other universities follow a 5-Point Scale, wherein the highest grade is a 1.00 ...