The probability of successfully rehabilitating a convicted criminal in a penal institution is 0.40 . A random sample of 3 convicted criminals is selected from the institution. A ssume that the behavior of each person does not depend on that of others.
a) What is the probability that all of the 3 criminals are successfully rehabilitated?
b) What is the probability yhat none of the 3 criminals are successfully rehabilitated?
c) What is the probability that at least one of the 3 is successfully rehabilitated?