to play a game, a die is rolled to see who plays first. four players are going to play the game. what is the probability that at least two people roll the same number?

Answer 1

Same as 2, 3 or 4 people rolling same number.

for 2 = 1/6 * 1/6 * 5/6 * 5/6 = ?

for 3 = 1/6 * 1/6 * 1/6 * 5/6 = ?

for 4 = 1/6 * 1/6 * 1/6 * 1/6 = ?

"Either-or" probability found by adding the three individual probabilities.