Problema Solution
What is the probability that a randomly selected three digit positive integer has no repeated digits? Express your answer in a decimal from.
Answer provided by our tutors
the total number of outcomes is: 10^3 = 1000 that is the total number of permutations with repetition
the total number of positive integers with no repeated digits is: 10*9*8 = 720 that is the total number of permutation without repetition
the probability is p = 720/1000 = 0.72.