PRESENTING DATA

PRESENTING DATA

1. BAR GRAPHS

   • Used for discrete data
   • Has gaps between the bars
   • All the bars have the same width

2. POLYGONS

   • A cumulative frequency polygon is called ogive
   • Is a line graph joining frequencies

3. HISTOGRAM

   • Used for continuous data
   • There are no gaps
   • A column graph of all the scores in the data set
   • The width of the bars are related with the width of classes/intervals
   • x - axis > topic of the data (mass, height...) y-axis > frequency or relative freq. (cumulative)