Statistics

Statistics

1. Types of Questions

   • Open-Ended Questions
   • Close-Ended Questions
   • Likert Scale
   • Ranking Order
   • Multiple Choice
   • Dichotomous

2. Measure

   • Percentages
   • Measures of Central Tendency
     • Mean (numeric data)
     • Median (numeric data)
     • Mode (non-numeric)
   • Measures of Dispersion
     • Range
     • Standard Deviation
     • Interquatile Range
   • 1,2,2,3,3,3,3,4,5,5,6,8,100 (100 is outlier/ extreme value)

3. Graphs

   • Simple Bar Chart
   • Pie Chart
   • Line Chart
   • Histogram (continuous from one to another)
   • Scatter Diagram (two variables)
   • Multiple Bar Chart (comparing two variable)