In a recent Pew Research survey, 40% of American adults who have taken a college course online said that online courses provide an education value equal to courses taken in a classroom. If the 40% figure is correct for the population of adult online students and you interview 20 students from this population, how likely is it that

a. Exactly 10 of them will agree that such courses provide the same educational value as classroom courses?

b. At least 12 of them will agree?

c. No more than 7 of them will disagree?

d. At least 16 of them will disagree?