1/3
50 50 odd or even same probability
The largest 4 digit number with repetition is 9999. The smallest 3 digit number without repetition is 102 9999 - 102 = 9897
The probability is 67/200.
Largest 4 digit number with repetition is 9999 Largest 3 digit number without repetition is 987 Difference is 9999 - 987 = 9012.
8888
Repetition.
50 50 odd or even same probability
8889
The largest 4 digit number with repetition is 9999. The smallest 3 digit number without repetition is 102 9999 - 102 = 9897
9774
The probability is 67/200.
Largest 4 digit number with repetition is 9999 Largest 3 digit number without repetition is 987 Difference is 9999 - 987 = 9012.
8888
9876-987=8889
9876 - 123= 9753
9,876 without any number used more than once, 9,898 without side-by-side repetition, and 9,897 for a number without pattern.
9876-102=9774The largest 4 digit number, without repetition, is 9876.The smallest 3 digit number is 102.Their difference is 9774.