Two non-zero digits x and y were randomly (uniform distribution) generated by a computer.

I. What is the probability that x-y is a multiple of 4 ?
Ii. Same question for 5 instead of 4.

(In reply to presented graphically by Charlie)

Nice picture.  That's exactly what I did but it's nice to see it.

Posted by Jer on 2022-03-28 13:08:40