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
Hello, Dan!
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.
Therefore: .
But check my arithmetic, please . . .
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