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What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

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)

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5