Construct a histogram for the following data: Monthly school fee (in Rs., 30-60, 60-90, 90-120, 120-150, 150-180, 180-210, 210-240 No. of schools:, 5, 12, 14, 18, 10, 9, 4

Calculate the standard deviation for the following data: Class 0-30 30-60 60-90 90-120 120-150 150-180 180-210 Frequency: 9 17 43 82 81 44 24

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 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

Consider the following distribution of daily wages of 50 workers of a factory. Daily wages (in Rs).: 100-120 120-140 140-160 160-180 180-200 Number of workers: 12 14 8 6 10 F i nd the mean daily wages of the workers of the factory by using an appropriate method.

Construct a frequency polygon for the following data: Age (in year) 0-2 2-4 4-6 6-8 8-10 10-12 12-14 14-16 16-18 Frequency 2 4 6 8 9 6 5 3 1

Construct a frequency polygon for the following data: Age (in year) 0-2 2-4 4-6 4-8 8-10 10-12 12-14 14-16 16-18 Frequency 2 4 6 8 9 6 5 3 1

Find the median of the following data: CLASS ; 0-10 , 10-20 , 20-30 , 30-40 , 40-50 , 50-60 , 60-70 , 70-80 , 80-90 , 90-100 FREQUENCY ; 5 ,3 , 4 , 3 , 3 , 4 , 7 , 9 , 7 , 8

Find the median of the following data: class : 0-10 , frequency :5 , 10-20 , 3 , 20-30 , 4 , 30-40 , 3 , 40-50 , 3, 50-60 , 4, 60-70 , 7 , 70-80 , 9 , 80-90 , 7 , 90-100 , 8 ,

Find the median of the following data: class : 0-10 , frequency :5 , 10-20 , 3 , 20-30 , 4 , 30-40 , 3 , 40-50 , 3, 50-60 , 4, 60-70 , 7 , 70-80 , 9 , 80-90 , 7 , 90-100 , 8 ,

The following distribution gives the daily income of 50 workers of a factory: Daily income (in Rs): 100-120 120-140 140-160 160-180 180-200 Number of workers: 12 14 8 6 10 Convert the above distribution to a less than type cumulative frequency distribution and draw its ogive.