The distribution whose density function is f(x) = e b kun TER 2b where u E R and b > 0 are parameters, is called the Laplace distribution. In this problem, we focus on the case # = 0. So let X be a random variable, whose distribution is the Laplace distribution with / = 0 and arbitrary b > 0. (1) Calculate EX, namely the expectation of X. (2) Calculate the standard deviation of X