(2>Recreational skiing is big business in some of the western and New England states. Many recreational skiers are beyond the beginning level, and want intermediate or "more difficult" terrain. Snow Country, September 2005 issue, described the 35 top-rated ski areas and gave the percentage of the skiing terrain that was at the more difficult level. The percentages follow. 36 54 51 49 30 43 45 35 40 52 28 51 40 40 45 40 60 20 25 50 40 65 58 43 59 49 55 30 33 60 30 46 65 33 28 a. Make a stem-leaf and comment on any features of this distribution that you notice. b. Compute mean standard deviation, mode, median, midrange, first and third quartile