Following is the weekly wage earnings of 19 workers:
`{:("Wages(Rs.)",10,20,30,40,50),("Number of Workers",4,5,3,2,5):}`
Calculate arithmetic mean using Direst Method,

Following are the wages of 19 workers: {:("Wages(Rs.)",10,20,30,40,50),("Number of Workers",4,5,3,2,5):} Calculate arithmetic mean, using Short-cut Method.

Wage rate of 19 workers is given below: {:("Wages(Rs.)",10,20,30,40,50),("Number of Workers",4,5,3,2,5):} Calculate arithmetic mean, using 'Step-deviation Method.

Calculate mode from the following data : {:("Wages",25,50,75,80,85,90),("Number of Workers",4,6,9,3,2,1):}

The following table shows wages of the workers. Calculate the average wage of the workers. {:("Wages(Rs.)",10-19,20-29,30-39,40-49,50-59),("Number of Workers"," "8," "9," "12," "11," "6):}

The following table gives the weekly wage of workers in a factory: Find the mean

Find out median of the following series : {:("Wage Rate (Rs.)",25-30,20-25,15-20,10-15,5-10,0-5),("Number of Workers"," "5," "10," "20," "5," "8," "2):}

In the following frequency distribution, the frequency of the class interval (40-50) is not known. Find it, if the arithmetic mean of the distribution is 52. {:("Wages(Rs.)",10-20,20-30,30-40,40-50,50-60,60-70,70-80),("Number of Workes"," "5," "3," "4," "?," "2," "6," "13):}