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3. Atlantic Canada recently voted in a federal election. One of the options for voting in this election was through the mail. To do this you must have registered with Elections Canada and provided some form of I.D. with your current address on it. The following data show the number of people who registered to "Vote by Mail" in a sample of 15 federal election ridings in Atlantic Canada (hypothetical data). 38 16 69 101 69 70 109 121 49 45 1909 151 68 90 91 Do not use computer software for parts a, b & c Calculate by showing workings : a) i) mean ii) median iii) mode iv) Which of the above do you think would be the best measure of central tendency for this data? Why? b) Calculate the range, variance and the standard deviation. c) Calculate the 58" percentile & the 3"d decile of this data. d) Using Megastat's Descriptive Statistics, find (confirm) the mean, median, mode, range, variance and the standard deviation of the above data. Submit your Output