Make the frequency table and the cumulative frequency curve for following data

Draw the cumulative frequency curve for the following given data :

What is cumulative frequency?

Make a frequency curve of the following data :

Draw the less than cumulative frequency graph for he following data :

Graph of Cumulative Frequency

Write the Less than Greater than cumulative frequencies for the following data

Make a frequency table from the following

Draw a histogram, a frequency polygon and frequency curve of the following data :

The following table shows the distribution of salaries of a group of workers : Determine cumulative frequencies Draw the cumulative frequency curve i.e. less than ogive on a graph paper. From graphs, write down the median salary (in Rs)?