STATISTICS

STATISTICS

1. BASICS

   • Quantitative
     • *Continues *Discrete
   • Qualitative

2. Measurement Scales

   • Quantitative
     • *Interval *Ratio
   • Qualitative
     • *Nominal *Ordinal

3. Sampling Methods

   • NO Probabilistic Method
     • *volunteer *convenience
   • Probabilistic Method
     • *Conglomerados *Simple *Estratificado *Sistematizado

4. Visual Display of data

   • Displays
     • *Histogram *Bar graphs *Circle Graph *Line graphs *Stem and leaf
   • Frecuency distribution
     • Frecuency
       • * number of corresponding data
     • Relative frecuency
       • *Fraction or %

5. Measures of central tendency

   • Mean
   • Mode
   • Median
   • Weighted Mean

6. Measures of Dispersion

   • Range
     • * Biger Data- Lower Data
   • Standar Deviation
   • Chevyshev´s Teorem