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1. The table below represents the years of birth of my students. Calculate their ages this year and with their ages, solve all measures of central tendency and determine skewness of the distribution. No. 1 2 3 4 5 6 7 8 9 10 the 11 Yearofbirth 1987 1990 1982 1991 1989 1993 1975 1994 1992 1990 1970 2. The following data give the time in months from hire to promotion to manager for a random sample of 25 software engineers from all software engineers employed by a large telecommunications firm. 5 7 229 453 12 14 18 14 14 483 22 21 25 23 24 34 37 34 49 64 47 67 69 192 125 Calculate the mean, median, and mode for this sample. What is the skewness of the distribution? 3. On June 30, 2020, the capitalizations of nine Asian/Pacific stock markets were: Country : Philip Indonesia Thailand Singapore Malaysia So Korea Taiwan Hongkong China Capitalization : 32 24 44 50 79 86 140 178 (in billions) (a) Find the arithmetic mean, median and mode of the data. (b) What is the best measure of central tendency? 203