At the sewing store, Mona bought a bag of mixed buttons. She got 24 large buttons and 51 small buttons. What percentage of the buttons were large?

Given a binomial distribution variable with n=20 and p=0.60 find the following possibilities using the binomial table a) p(x < 13) b) p x > 15) c) p(x = 17) d) p(11 < x < 14) e) p(11 < x < 14)