A die is rolled 30 timeswhat is the probability of getting x even number
Mathematics
mrams3
Question
A die is rolled 30 timeswhat is the probability of getting x even number
1 Answer

1. User Answers mreijepatmat
Probability of getting an even number (2,4,6) out of (1,2,3,4,5,6) =3/6=1/2
The probability of getting x even number :
(using the binomial probability)
30Cx (1/2)^x . (1/2)^(30x)