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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 ...
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 ...
By comparison, the Earth's magnetic field has an average strength of about 0.3 G (Gauss) or 30 μT . Radio-faint galaxies like M 31 and M33, the Milky Way's neighbors, have weaker fields (about 5 μG), while gas-rich galaxies with high star-formation rates, like M 51, M 83 and NGC 6946, have 15 μG on average. In prominent spiral arms, the ...
Fusing four free protons (hydrogen nuclei) into a single alpha particle (helium nucleus) releases around 0.7% of the fused mass as energy, so the Sun releases energy at the mass–energy conversion rate of 4.26 billion kg/s (which requires 600 billion kg of hydrogen), for 384.6 yottawatts (3.846 × 10 26 W), or 9.192 × 10 10 megatons of TNT ...
The Mughal Empire was founded by Babur (reigned 1526–1530), a Central Asian ruler who was descended from the Turco-Mongol conqueror Timur (the founder of the Timurid Empire) on his father's side, and from Genghis Khan on his mother's side. [42] Paternally, Babur belonged to the Turkicized Barlas tribe of Mongol origin. [43]
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