1 A probability density function of a random variable is given by f(x) = 2 - 2 on the interval [1, 3]. Find the expected value, the variance, and the standard deviation. The expected value is μ≈ ☐ (Round to two decimal places as needed.) The variance is Var(X)≈ | (Round the final answer to two decimal places as needed. Use the expected value rounded to two decimal places. Do not round any other intermediate values.) The standard deviation is o (Round the final answer to two decimal places as needed. Use the expected value and variance rounded to two decimal places. Do not round any other intermediate values.)