Dominoes domino sets commercially available are double six (with 28 tiles) and double nine (with 55 tiles). Larger sets exist and are popular for games involving several players or for players looking for long domino games. The number of tiles in a set has the formula formula_1 for a double-"n" set. The most popular type of play are layout games, which fall into two main categories, blocking games and scoring games. The most basic domino variant is for two players and requires a double-six set. The 28 tiles are shuffled face down and form the "stock" or "boneyard". Each player draws
Double standard measured by different standards” (Eichler 1980:15). A gender based double standard is considered a same behavior exhibited by a man or woman which is evaluated differently. Types of these judgements include sexual behaviors such as premarital-sex, in which there is a need to protect a daughter’s sexual purity and not the son’s. Other behaviors sometimes judged differently for each gender include dating, cohabitation, age of marriage, extramarital sex, sexual assault, sexual harassment, domestic violence, hypergamy, bigamy, remarriage, and remaining single. A double standard can develop in a person’s mind for a multitude of reasons including; finding an excuse for oneself,