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Q-1: [4+6+8+2 Marks] the data shown here represent the number of hours that 12 part-time employees at a toy store worked during the weeks before and after Eyed Al Adha: Before 38 16 18 24 12 30 35 32 31 30 24 35 After 26 15 12 18 24 32 14 18 16 18 22 12 a) Calculate the mean and median for each set of data. b) Find the inter-quartile range for each set of data. c) Calculate the standard deviation for each group. d) Compare the distributions