Formula for Probability is:
P(n)=N!/(n! (N-n)! p^n q^(N-n)
where,
p is the probability of getting one outcome=1/2
and
q=probability of getting the other outcome=1/2
Putting the values in the equation:
P(29)=30!/(1! 29!) (1/2)^30
P(29)=30 x (1/2)^30 = 2.8x10^(-8)
In percentage:0.0000028%
