Find `Q_(3)` for 7 , 16 , 19 , 10 and 21 and 12 .

Find Q_(1) for 8 , 12 , 7 , 5 , 16 , 10 ,21 and 19 .

Find Q_(1) of the observations 21 , 12 , 9 , 6 , 18 , 16 and 5 .

Find the mean of the quartiles Q_(1) , Q_(2) and Q_(3) of the data 5 , 9 , 8 , 12 , 7 , 13 , 10 , 14.

Find the mean and median of the data is 10 , 15 , 17 , 19 , 20 and 21 .

D_(3) for data: 16, 21, 27, 13, 19, 26, 25, 12, 17, 28 is

Find the mean deviation about the median for the following data: 3, 9, 5, 3, 12 , 10 , 18 , 4, 7, 19 , 21 .

Find the mode of 10, 12, 11, 10, 15,20, 19, 21, 11, 9, 10.

Find the mean deviation from the median for the following data : 9, 12, 18, 3, 5, 3, 10, 12, 21, 12, 21.

Find the mean deviation from the median for the following data : 10, 3, 12, 5, 9, 3, 18, 21, 21, 8, 12, 12.