# Consider tossing a pair or fair dice two times. Is getting A = 7 on the first roll; B = 6 or less on the first roll disjoint, independent, or neither?

May 25, 2017

Outcomes of $= 7 O R \le 6$ are mutually exclusive, but they can happen at the same roll, but it's EITHER A or B. This is called disjoint (A excludes B).