(1 point) you may make reference to the following three results in this question: (n n(n1) 2n(n1) (2n 1) т+1)с i=m the random variable x has the discrete uniform distribution given by j)=k for j р(x 2, 3, , 29. find (to 3 d. p.): part a) the value of k given as a fraction. part b) the expectation of x given to three decimal places. part c) the variance of x given to three decimal places.