At the Whistle Top Cafe,15 of the 19 patrons are mechanics.
If a sample of 8 is taken, what is the probability that exactly 5 patrons are mechanics?
There are 19 patrons: 15 Mechanics and 4 Others.
There are: . possible samples.
We want 5 Mechanics and 3 Others.
. . There are: . ways.
But check my arithmetic, please . . .