Range of data : `20,40,30,60,80,100,10,70` is

The range of data 11, 40, 36, 10, 25, 30, 15, 14 is k. find k

Find the standard deviation for the following data: 10, 20, 30, 40, 50, 60, 70, 80, 90

The range of the data 30, 61, 55, 56, 60, 20, 26, 46, 28, 56 is

Using step deviation method find the standard deviation and its coeficient of the following data.Class 20-30,40-50,50-60,60-70,70-80,80-90 and Frequency 3,61,132,153,140,51,2

For the following data the value of Q_(1) + Q_(3) - Q_(2), is {:("Age in years" ,:,20,30,40,50,60,70,80),("No. of members" ,:,3,61,132,153,140,51,3):}

The range of the data 14, 15, 18, 25, 11, 40, 36, 30 is ______.

5, 10, 20, 40, 80, ?