Basic Statistics

lists each category of data and the number of occurences for each category of data

is the proportion (or percent) of observations within a category and is found using the formula

Relative frequency= frequency/sum of all frequencies

lists each category of data together with the relative frequency

is constructed by labeling each category of data on either the horizontal or vertical axis and the frequency or relative frequency of the category on the other axis. Rectangles of equal width are drawn for each category. The height of each rectangle represents the category's frequency or relative frequency. 

is a bar graph whose bars are drawn in deccreasing order of frequency or relative frequency. 

is a circle divided into section. Each sector represents a category of data. The area of each sector is proportional to the frequency of the category. 

is constructured by drawing by drawing rectangles for each class of data. The height of each rectangle is the frequency or relative frequency of the class. the width of each rectangle id the same and the rectangles touch each other. 

the smallest value within the class