STATISTICS

STATISTICS

1. Population

   • Parameter
     • Numeric measuremnt, describe a population characteristics
   • Collection of all items of interest for the study

2. Sample

   • Statistic
     • Numeric measurement, describes a sample characteristic
     • Techniques
       • Simple Sampling
         • Divides the elemnts in groups based on similarities
       • Simple Random Sampling
         • Every element has equal chance of being chosen
       • Systematic Sampling
         • Elements are chosen at regular interval
       • Cluster Sampling
         • Population divided into cluster and the clusters are chosen randomly
       • Multi-Stage Sampling
         • Combination of some said technics
   • Subset of population

3. Variable

   • Interesting chacteristic of an element of a sample

4. Data

   • Value of a variable
   • Types
     • Qualitative
       • Result of a process that categorize an element of a population
     • Quantitative
       • Result of a progress that quantifies
         • Discrete
           • From counting
         • Continue
           • From measurement