Refer to the Minitab display to the right below;
x P(X=x)
0.00 0.3596
1.00 0.4081
2.00 0.1853
3.00 0.0421
4.00 0.0048
5.00 0.0002
probabilities were obtained by entering the values of n equals n=5 and p equals p=0.185. In a clinical test of a? drug, 18.5?% of the subjects treated with 10 mg of the drug experienced headaches. In each? case, assume that 5 subjects are randomly selected and treated with 10 mg of the drug. Find the probability that at least four of the subjects experience headaches.