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

Calculate the mean 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 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 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

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

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

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

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

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