How many groups is the five-star binary combination 0?

10 group. Five stars and two zeros are a lottery game, which means that five of the 10 numbers from 0 to 9 are selected as lottery numbers, and two of them are the same as the lottery numbers, then you win the prize, because two of them are fixed, so the combination number of the remaining three numbers is the number of winning groups. According to the formula for calculating the combination number, the combination number of three numbers in five numbers is 5! /((5-3)! *3! ) = 10, which means there are 10 five-star winning combinations and two fixed combinations of 0 * *. On a global scale, many countries and regions have established official or private lottery institutions and sales channels.