Number of readers in a library are given below. Write the frequency of respective classes. Also write the less than cumulative frequency table.

Construct the class boundaries of the following frequency distribution table. Also construct less than cumulative and greater than cumulative frequency tables.

Cumulative frequency table is given below. Which type of cumulative frequency is given. Try to build the frequencies of respective class intervals.

The following table gives the distribution of 45 students across the different levels of Intelligent Quotient. Draw the histogram for the data.

Construct a histogram for the marks obtained by 600 students in the VII class annual examinations.