Construction of two frequency polygon in same axes

Construction of frequency polygon by using Histogram

Construction of frequency polygon without using Histogram.

Construction of a frequency distribution

Construction of a frequency distribution

Consider the following statements pertaining to a frequency polygon of a frequency distribution of a continuous variable with seven class intervals of equal width: 1. The original frequency distribution can be reconstructed from the frequency polygon. 2. The frequency polygon touches the x-axis in its extreme right and extreme left. Which of the above statements is/are correct?

(i)Construct a histogram and frequency polygon of the following distribution : (ii)Show that the area under frequency polygon is equal to the area under histogram.

The daily pocket expenses of 206 students in a school are given below. Construct a frequency polygon representing the above data.