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 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 . {:("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 .

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

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

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.

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.

The table below shows the daily expenditure on food of 25 households in a locality. Find the mean daily expenditure on food by a suitable method.

The following distribution shows the pocket allowance of children of a locality The mean pocket allowance is Rs18 . Find the missing frequency f . {:("Daily pocket allowance (in Rupees)","Number of children"),(11-13,7),(13-15,6),(15-17,9),(17-19,13),(19-21,f),(21-23,5),(23-25,4):}