Statistics

Statistics

1. Basic Concepst

   • Qualitative
   • Quantitative
     • Continues
     • Discrete

2. Measurement scales

   • Nominal
     • Identity property of measurements
   • Ordinal
     • Identity and magnitude
   • Interval
     • Identity, magnitude and equal intervals
   • Ratio
     • Identity, magnitude, equal intervals and minimum value of 0

3. Sampling Methods

   • Probability
     • Simple (random)
     • Systematic
     • Statified
     • Cluster
   • Non-Probability
     • Quota
     • Convenience

4. Visual displays of data

   • Line graphs
   • Circle graphs
   • Bar graphs
   • Stem and leaf
   • Histogram
   • Frecuency distribution

5. Measures of central tendency

   • Median
   • Mode
   • Mean
   • Weighted mean

6. Measures of dispersions

   • Standard deviation
   • Range
   • Chevyshev's teorem
   • Coefficient of variation