Exercise 3-81 (Algo) (L03-1, L03-4, L03-5) A sample of 2S undergraduates reported the following dollar amounts of enterainment expenses last year: 6gz Click here for the Excel Data File Regulred: 312 682 SS a 68 S a. Find the mean. median. and of this information. (Round the "Mean" to 2 declml places.) b. What are the range and standard deviation? (Round the "Standard devltlon" to 2 declmel places.) St. re-d c. Use the Empirical Rule to establish an interval that includes abut of the observations. (Round your answers to 2 declml places.)