Hrqls: You want to roll a 1 on two consecutive rolls? Assuming it's ok to roll a pair of 1s, then your calculation of 11/36 * 11/36 (about 0.0933) is correct. So you have about a nine and one third percent chance of rolling at least one 1 on two consecutive turns.
Remember, probability (or chance) is winners divided by total. In this case, a winner is a roll containing a 1, and you were correct that there are eleven of them. There are thirty six total ways of rolling a pair of dice.
Also, when dealing with two disjoint probabilities, simply multiply them together (as you did).
(nascondi) Se non desideri che gli altri utenti sappiano quello che stai facendo mentre sei in linea, clicca su "Modo mascherato" nelle Preferenze (funzione attiva solo per gli utenti a pagamento). (pauloaguia) (mostra tutti i suggerimenti)