Draw the frequency curve for the following data.
`{:("Class Interval",f),(" "2-5,12),(" "5-8,8),(" "8-11,8),(" "11-14,6),(" "14-17,10),(" "17-20,9):}`

Construct a frequency polygon for the following data: {:("Class Interval",5-10,11-16,17-22,23-28,29-34,"Total"),("Frequency",7,13,8,12,10,50):}

Find the quartile deviation of the following data: {:(x,f," "x,f),(2,4," "13,2),(3,6," "17,4),(5,8," "19,6),(7,9," "23,6),(11,10," ",):}

Find the mean deviation about the median for the following data: 11, 3, 8, 7, 5, 14, 10, 2, 9

Find the median of the following data 12,17,3,14,5,8,7,15

Construct a frequency distribution table for the following data, taking class-intervals 4-6, 6-8 , ............. 14-16 . 11.5, 6.3, 7.8, 9.2, 10.5, 4.5, 6, 8.3, 12.5, 15.8, 7.4, 5.3, 8.4, 15.2, 8.9, 9.8, 8.25, 6.5, 5.8, 10.5, 14.2, 15.3, 11.7, 9.9, 8.8, 6.6, 4.3, 4.7, 9.4, 10.1, 15.5, 14.4, 12.2, 7.7, 5.5 .

Find the mode from the following data : 8,10,5,8,12,7,8,9,11,7

Find the median of the daily wages of ten workers from the following data: Rs 20, 25, 17, 18, 8, 15, 22, 11, 9, 14.

Find the median of the daily wages of ten workers from the following data: Rs 20, 25, 17, 18, 8, 15, 22, 11, 9, 14.