30 Between what two standard deviations of a normal distribution contain 68% of the data? a) one below and one above
b) two below and two above
d) zero and two above
C) two below and zero

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)