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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 ...
The number of migrants arrested attempting to cross the Mexican border in the Southwest decreased from a high of 1.1 million in 2005 to 367,000 in 2011. [200] Despite these recent trends, illegal aliens constituted an estimated 7.3 percent of the state's population, the third highest percentage of any state in the country , [ 201 ] [ note 4 ...
The newly expanded program comes in three tiers: The cheapest costs $7.99 per month, allowing for 40 games a visit with a 20% discount on food and drinks; the next is $11.99 for 100 games and a 30 ...
In December 2020, XPO, Inc. announced that it would spin off its global contract logistics segment into a separate company. [10] In March 2021, XPO announced the new name of the firm as GXO Logistics Inc. [11] The spin-off was completed on August 2, 2021, [3] with American businessman Brad Jacobs named as Non-Executive Chairman, Malcolm Wilson as CEO; formerly the CEO of XPO, Inc. European ...
Magnesium hydroxide is an inorganic compound with the chemical formula Mg (OH) 2. It occurs in nature as the mineral brucite. It is a white solid with low solubility in water ( Ksp = 5.61 × 10−12 ). [ 5] Magnesium hydroxide is a common component of antacids, such as milk of magnesia .
Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, nitro, or nos, [ 4] is a chemical compound, an oxide of nitrogen with the formula N. 2O. At room temperature, it is a colourless non-flammable gas, and has a slightly sweet scent and taste. [ 5]
Oxo-degradable is a term used by the EU and others which has caused confusion. The specific definitions are found in CEN (European Committee for Standardisation) Technical report CEN/TR 15351 "Oxo-degradation" is degradation identified as resulting from oxidative cleavage of macromolecules". This describes ordinary plastics which abiotically ...
Oxygen is a chemical element; it has symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Oxygen is the most abundant element in Earth's crust, and after hydrogen and helium, it ...