Calculate coefficient of variation from the following data: Income (in Rs.) 1000-1700 1700-2400 2400-3100 3100-3800 3800-4500 4500-5200 No. o families 12 18 20 25 35 10

Find the coefficient of variation for the following data: Size (in cms) 10-15 15-20 20-25 25-30 30-35 35-40 No. of items 2 8 20 35 20 15

The following table gives the distribution of income of 100 families in a village. Calculate the standard deviation: Income Rs. 0-1000 1000-2000 2000-3000 3000-4000 4000-5000 5000-6000 No. of Families 18 26 30 12 10 4

The following table gives the distribution of income of 100 families in a village. Calculate the standard deviation: Income Rs., 0-1000, 1000-2000, 2000-3000, 3000-4000, 4000-5000, 5000-6000 No. of Families, 18, 26, 30, 12, 10, 4

Calculate the median from the following data: Rent (in Rs.): 15-25 25-35 35-45 45-55 55-65 65-75 75-85 85-95 No. of Houses: 8 10 15 25 40 20 15 7

Calculate sixty first percentile from the following data of the marks obtained by 10 students is an examination : 22,26,14,30,18,11,35,41,12,32

Calculate the median and sixty first percentile from the following data of marks obtained by 10 students in an examination. 22, 26, 30, 14, 35, 11, 18, 12, 32, 41.

From a grouped frequency distribution from the following data by inclusive method taking 4 as the magnitude of class intervals. 31,23,19,29,22,20,16,10,13,34, 38,33,28,21,15,18,36,24,18,15, 12,30,27,23,20,17,14,32,26,25 18,29,24,19,16,11,22,15,17,10

Form a grouped frequency distribution from the following data by inclusive method taking 4 as the magnitude of class intervals. 31,23,19,29,22,20,16,10,13,34 38,33,28,21,15,18,36,24,18,15 12,30,27,23,20,17,14,32,26,25 18,29,24,19,16,11,22,15,17,10

Form a grouped frequency distribution from the following data by inclusive method taking 4as the magnitude of class intervals. 31,23,19,29,22,20,16,10,13,34,38,33,28,21,15,18,36,24,18,15, 12,30,27,23,20,17,14,32,16,25,18,29,24,19,16,11,22,15,17,10

The coefficient of correlation for the variables x and y is 0.9926 from following data : {:(X,18,20, 25, 30, 31, 32),(Y, 21, 22, 28, 32, 35, 36):} Find the change in the correlation coefficient if each value of x in multiplied b 3 and subtracted by 4 and each value of y is multiplied by 2 and increased by 3.