Statistics

Statistics

1. Data

   • Nominal - categorical and non-numerical
     • Chi Square
     • Bar chart
   • Ordinal - can be put in to order but the differences between each point may vary (e.g. data from a ratings scale)
     • Bar chart
   • Interval - the data can be put in to order and the differences between each point are equal but there is no absolute zero point e.g. temperature as 0 degrees is arbitrary
     • Histogram/frequency polygon
   • Ratio - the data can be put in to order, differences between are equal and there is an absolute zero point