Statistics

Statistics is the science of collecting, organizing, presenting, analyzing, and interpreting numerical data for the purpose of assisting in making more effective decisions.

General Statistics

**Frequency Distribution **

- Construction of Frequency Distributions
- Relative Frequency Distribution
- Cumulative Frequency Polygons
- Graphic Presentation of Frequency Distributions

**Measures of
Central Tendency **

- Population Mean
- Sample Mean
- Arithmetic Mean
- The Median
- The Mode
- Weighted Mean

**Measures of
Dispersion and Skewness **

- Ungrouped Data / Grouped Data
- Range
- Mean Deviation
- Variance of Standard Deviation
- Interquartile Range
- Quartile Deviation
- Approximate Quartiles
- Percentile Range
- Box Plots
- Chebyshev's Theorem
- The Empirical Rule

**Probability
Concepts **

- Classical Probability
- Relative Frequency Concept
- Subjective Probability
- Rules of Addition
- Rules of Multiplication
- Tree Diagram
- Bayes Theorem
- Permutation Formula
- Combination Formula

**Discreet Probability
Distributions **

- Random Variables
- Mean
- Variance and Standard Deviation
- Binomial
- Cumulative
- Hyper geometric
- Poisson

Sampling Methods and Sampling Distribution

- Simple Random Sampling
- Systematic Random Sampling
- Stratified Random Sampling
- Cluster Sampling
- Central Limit Theorem
- Point Estimates
- Interval Estimates