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?

Question

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.