Find the variance and standard deviation for the following data:

Find the variance and standard deviation of the following data : 4,6,10,12,14,18,20

Find the mean variance and standard deviation for the following data: 2,4,5,6,8,17

Find the mean variance and standard deviation for the following data: 6,7,10,12,13,4,8,12

Find the mean variance and standard deviation for the following data: 227,235,255,269,292,299,312,333,348

Find the mean , mean deviation about the mean , variance and standard deviation for the following data

Find the mean, variance and the standard deviation for the following data : 5,9,8,12,6,10,6,8

Find the mean , mean deviation about the mean , variance and standard deviation for the following data 4,15,14,12,6,8,11

Calculate the mean, variance and standard devation for the following data :

Find standard deviation from the following :