Determine whether or not f is a conservative vector field. if it is, find a function f such that f = -f. if it is not, enter none. f(x, y) = (2x - 4y) i + (-4x + 10y - 5) j f(x, y) = + k

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)