Consider the following distribution of daily wages of 50 workers of a factory.

find the mean daily wages of the workers of the factory by using step deviation method.

Consider the following distribution of daily wages of 50 workers of a factory. Find the mean daily wages of the workers of the factory by using an appropriate method.

Find the mean deviation from the mean of the following data: Using step deviation method.

Consider the following distribution of daily wages of 50 workers of a factory . {:("Daily wages in Rupees","Number of workers"),(200-250,12),(250-300,14),(300-350,8),(350-400,6),(400-500,10):} Find the mean daily wages of the workes of the factory by using an appropriate method .

The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs.18. Find the missing frequency f.

If the mean of the following frequency distribution is 50 , then find the value of k.

Weekly wages of 250 workers in a factory are given in the following table. Construct the histogram and frequency polygon on the same graph for the data given.