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

Compute mean deviation from mean of the following distribution: Marks 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 No. of students 8 10 15 2 20 18 9 5

Calculate the mean, variance and standard deviation for the following distribution: Class 30-40 40-50 50-60 60-70 70-80 80-90 90-100 Frequency 3 7 12 15 8 3 2

Calculate the mean, variance and standard deviation for the following distribution:Class 30-40 40-50 50-60 60-70 70-80 80-90 90-100Frequency 3 7 12 15 8 3 2

Calculate the mean and standard deviation for the following table given the age distribution of a group of people: Age: 20-30 30-40 40-50 50-60 60-70 70-80 80-90 No. of persons: 3 51 122 141 130 51 2

Calculate the mean and standard deviation for the following table given the age distribution of a group of people: Age: 20-30 30-40 40-50 50-60 60-70 70-80 80-90 No. of persons: 3 51 122 141 130 51 2

Find the mean deviation about the mean for the following data: Marks obtained , 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 Number of students, 2, 3, 8, 14, 8, 3, 2

Compute D3 for the following distribution : {:("Marks",0-10,10-20,20-30,30-40,40-50,50-60,60-70,70-80,),("No.of students",3,10,17,7,6,4,2,1,):}

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 mean and the standard deviation for the following distribution : Marks [20,30,40,50,60,80,90],[,-,-,-,-,-,-,-],[,30,40,50,60,70,90,[10],[0]], No.of Student [s] ,3,6,13,15,14,5,4]

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