A chemical supply company currently has in stock 100 lb of a certain chemical, which it sells to customers in 5-Ib lots. Let x = the number of lots ordered by a randomly chosen customer. The probability distribution of x is as follows: X 1 2 3 4 Pr(x) .27 45 05 Using your answers from questions 1 and 2, calculate the standard deviation, Ox , of x. Do not round your answer until the end. Give your answer as a decimal rounded to 3 places after the decimal