Unstack the data from the variables Cr. hours and Age into two columns labeled Full time and Part time. Calculate the median age of full-time students. Calculate the average age of part-time students. Cr. Hrs. 7 9 9 9 12 6 6 12 9 6 4 3 12 14 15 3 13 12 12 7 Age 36 17 19 21 20 20 22 21 21 16 20 20 34 19 20 22 24 20 31 20

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