Calculate the mean and standard deviation for the following data: Wages upto (into Rs.) 15 30 45 60 75 90 105 120 No. of workers 12 30 65 107 157 202 222 230

Calculate the mean deviation (about mean) and standard deviation of the following data: 25,50,48,70,45,33,51,31,60

Find the variance and standard deviation for the following data 65,68,58,44,48,45, 60,62,60,50

Calculate the mean for the following data: {:(,"Wages per week upto Rs.",15,30,45,60,75,90,105,120),(,"No. of workers",12,30,65,107,157,202,222,230):}

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

Find the variance and standard deviation for the following data : 65, 58, 68, 44, 48, 45, 60, 62, 60, 50.

Calculate the median deviation from the median of the following data: Wages per week (in Rs.),10-20,20-30,30-40,40-50,50-60,60-70,70-80 No.of workers,4,6,10,20,10,6,4

Calculate the mean deviation from the mean for the following data: 36,72,46,42,60,45,3,46,51,49

Calculate the mean and standard deviation using step deviation method for the following data : {:("Class marks"(x_(i)),15,30,45,60,75,90,105,120),("Frequency" (f_(i)),12,14,65,107,157,202,222,230):}

Calculate the mean deviation from the mean for the following data:36,72,46,42,60,45,53,46,51,49

Calculate the mean and standard deviation for the following distribution: Marks:,20-30,30 - 40,40-50,50-60,60-70,70-80,80-90 No.of students: 3,6,13,15,14,5,4