Permutation question (1 Viewer)

boredofstudiesuser1

Active Member
Joined
Aug 1, 2016
Messages
570
Gender
Undisclosed
HSC
2018
A poker machine with 4 wheels and 20 symbols on each wheel has 5 aces on the first wheel, 4 aces on the second and 2 aces on each of the remaining wheels. What is the probability of 4 aces showing?
 

InteGrand

Well-Known Member
Joined
Dec 11, 2014
Messages
6,109
Gender
Male
HSC
N/A
A poker machine with 4 wheels and 20 symbols on each wheel has 5 aces on the first wheel, 4 aces on the second and 2 aces on each of the remaining wheels. What is the probability of 4 aces showing?
Assuming independence of the wheels and that each symbol is equally likely to show up, it is (5/20)*(4/20)*(2/20)*(2/20).
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top