The number of ways you can pick 3 people from 9 = 9*8*7 / 3*2*1 = 84
So chance of picking the 3 suspects = 1 / 84.
The number of ways to pick 3 from the 6 innocent people = 6*5*4 / 3*2*1 = 20
Chances of picking 3 innocent people = 20 / 84 or 5/21
(-3/1) * (1/-3) = 1
Hope this helped! Please mark brainliest if this helped at all. Have a great rest of your day!
I Think The answer is 35 units I hope it helps Message Me if I’m wrong and I’ll change My answer and fix it for you
