Lottery is the biggest and most popular type of gambling and a big business today. Lottery is a type of gambling which involves drawing of lots of players for various prizes. There are some governments which have banned this type of gambling while other governments support them. But there is always some type of regulations for lotteries. Before World War II these lotteries were banned in Europe and U.S.A. There are various types of gambling. The prizes may vary from cash prize to some other goods. Lotteries that are run by the states are more than 40 years old. In 1964 the first state lottery of USA was started in State of New Hampshire. after that in 1967 the lotteries were started in New York and after that in 1970, in New Jersy.
The prize can be a fixed percentage of the receipts if there is some risk that all tickets may not be sold. One type of Lottery is "50-50" draw where the prize is 50% of the total revenue. When each ticket has a unique number then the prizes may be different for each number. Many recent lotteries allow purchasers to select the numbers on the lottery ticket which may cause possibility of multiple winners. There are some players who do not play game for winning it but just to experience some thrill and excitement by playing it.
There is a marksense technique which is used to scan large number of lottery tickets. Now a days, these are scanned through computers which take only seconds for deciding that some combination will be picked or not.
History of lottery starts from 205 and 187 B.C., when "Keno slips" were used for lotteries. There is also a major conribution of lotteries in the development of "Great Wall of China".The fund for the development of the wall, was collected with the help of lotteries. In ancient China a game was played named "the drawing of wood" which was based on lotteries .
The chances of winning a lottery depends upon the principle of probability which is a part of mathematices. Probability is calculated with the help of the count of possible numbers and the count of winning numbers drawn.