Suppose That for a Certain Illness, the Probability Is 40

Multiple Choice

Suppose that for a certain illness, the probability is 40% that a given patient will improve without treatment. Then the probability that at least n out of 20 patients will improve without treatment is given in the following table: We gave an experimental drug to 20 patients who have the illness and 11 patients showed improvement. What is the p-value?

A) 0.25
B) 0.13
C) 0.06
D) 0.02