When all n teams in a league play every other team twice, a total of N games are played, where N=n2−n. A soccer league has 5 teams and all teams play each other twice. How many games are played?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

What is ha theorem a special case of?