Statistics

Statistics

1. Basic Concepts

   • Population
     • Population
     • Parameter
       • Parameter
   • Sample
     • Sample
     • Statistics
       • Statistics
   • Quantitative Variable
     • Quantitative
     • Discrete or continous
       • D y C
   • Qualitative Variable
     • Qualitative

2. Measurement Scales

   • Nominal
     • Nominal
   • Ordinal
     • Ordinal
   • Interval
     • Interval
   • Ratio
     • Ratio

3. Sampling Methods

   • Non-Probability Samples
     • Non-Probability Samples
     • Voluntary Sample
       • Vol Sam
     • Convenience Sample
       • Con Sam
   • Probability Samples
     • Probability Sample
     • Stratified Sampling
       • Stratified Sampling
     • Cluster Sampling
       • Cluster Sampling
     • Multistage Sampling
       • Multisage Sampling
     • Systematic Random Sampling
       • Systematic Random Sampling
     • Simple Random Sampling
       • Simple Random Sampling

4. Visual Displays of Data

   • Frequency Distribution
     • Frecuency
       • Frecuency
     • Relative Frecuency
       • Relative Frecuency
   • Displays
     • Line Graphs
       • Line Graph
     • Circle Graphs
       • Circle Graph
     • Bar Graphs
       • Bar Chart
     • Stem and Leaf
       • Stem and Leaf
     • Histogram
       • Histogram

5. Measures of Central Tendency

   • Mean
     • Mean
   • Weighted Mean
     • Weighted Mean
   • Median
     • Median
   • Mode

6. Measures of dispersion

   • Standard Deviation
     • Obtain the mean, then xi-xavg)^2, the sum of those divided by n
   • Range
     • Vmajor-Vminor
   • Coefficient of variation
     • (s/x)*100%
   • Chevyshev's Theorem
     • 1-(1/k^2)

7. Measures of position

   • Percentiles
   • Deciles
   • Quartiles
   • Box Diagram