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STA248 Final Review (247 Topics - Probability & Distribution (Axioms…

- - - - Turns other distribution into Normal with X bar (Sample Mean) :recycle:
      - Size Requirements depends on how similar in shape the distribution is compared to Normal
      - Usually sample size n=50 is sufficient (except for very very skewed)
    - - C.I.
      - Test Statistic (If under 500), and Normally distributed
    - - Squared is Chi-Squared :star:
  - - - CDF
- - - - Outlier
      - Mean
        
        k% Trimmed mean
      - Mode
      - Median & Quartile Range
        
        Interquartile Range
      - Variance
        
        -> Sample Variance
        
        vs. Average Absolute Deviation
    - - Descriptive Plots
        
        Strength & Weakness
        
        Categorical Data
        
        Quantitative Data
        
        Descriptive Statistics
      - Strength & Weakness
      - Elementary Plots
        
        Strength & Weakness
  - - - need:
        
        Unbiased(Accurate for the mean)
        
        Consistent(Precisely describe the distribution variance)
      - Terminology
        
        point estimate
        
        relative efficiency :question:
        
        standard error :question: (vs. standard deviation)
      - Types:
        
        Method of Moments(powered by W.L.L.N.)
        
        X bar, C.L.T.
        
        Maximum Likelihood Estimation
        
        log-likelihood function