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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 than t boxes need to be bought ...
Fibonacci sequence. In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted Fn . The sequence commonly starts from 0 and 1, although some authors start the sequence from 1 and 1 or sometimes ...
California is a state in the Western United States, lying on the American Pacific Coast.It borders Oregon to the north, Nevada and Arizona to the east, and an international border with the Mexican state of Baja California to the south.
Francisco Carrillo sobbed with relief as he lay on the bed in his new apartment in Madrid provided by a charity after three years of sleeping rough in the backroom of a theatre. The 62-year-old ...
Illinois's eastern border with Indiana consists of a north–south line at 87° 31′ 30″ west longitude in Lake Michigan at the north, to the Wabash River in the south above Post Vincennes. The Wabash River continues as the eastern/southeastern border with Indiana until the Wabash enters the Ohio River .
The store was 5,500 square feet and prices for all products match those on its website. [93] Amazon opened its tenth physical book store in 2017; [ 94 ] media speculation at the time suggested that Amazon planned to eventually roll out 300 to 400 bookstores around the country. [ 93 ]
Sushi (すし, 寿司, 鮨, 鮓, pronounced or ⓘ) is a Japanese dish of prepared vinegared rice (鮨飯, sushi-meshi), usually with some sugar and salt, plus a variety of ingredients (ねた, neta), such as vegetables, and any meat, but most commonly seafood (often raw but can be cooked).
acetyl chloride SOCl 2 acetic acid (i) Li[AlH 4], ether (ii) H 3 O + ethanol Two typical organic reactions of acetic acid Acetic acid undergoes the typical chemical reactions of a carboxylic acid. Upon treatment with a standard base, it converts to metal acetate and water. With strong bases (e.g., organolithium reagents), it can be doubly deprotonated to give LiCH 2 COOLi. Reduction of acetic ...