[صبر بلاحدود]

Approximately 9% of men have a type of color blindness that
prevents them from distinguishing between red and green. If 3 men
are selected at random, find the probability that all of them will have
this type of red-green color blindness

ميين يشرح لي هذا الشي؟؟؟؟؟؟؟؟؟؟