In a handloom factory different workers take different periods of time to weave a saree. The number of workers and their required periods are given below. Present the information by a frequency polygon.

The following frequency table shows the demand for a sweet and the number of customers. Find the mode of demand of sweet.

Draw a histogram for the following frequency distribution.

The time required for students to do a science experiment and the number of students is shown in the following grouped frequency distribution table. Show the information by a histogram and also by a frequency polygon.

Draw a frequency polygon for the following grouped frequency distribution table.