Provide correct answer with complete calculation. Don't submit only explanation. Need correct answer

((3) Consider the following experiment: two people are rolling a fair 6-sided dice. Once one people get 6, he will stop rolling and record the number of dice rolls. Another people will repeat this procedure and record his number of dice rolls. All rolls are independent. Using computer, repeat the experiment 1000 times, estimate that the probability of the difference of the numbers of dice rolls of these two people are less than or equal to 1