Random Variable

Mean and Variance of a Discrete Random Variable

More on Mean and Variance of a Discrete Random Variable

Normal Random Variables

Areas Under a Normal Curve

Probabilities using the Z-Table

Sampling Distribution of Sampling Mean

The t-distribution

t-distribution and Hypothesis Testing

Formulating Appropriate Null and Alternative Hypothesis

Identifying Appropriate Test Statistics Involving Population Mean

Computing Test Statistic on Population Mean

Drawing Conclusion About Population Mean Based on Test Statistic Value and Critical Region

Drawing Conclusion About Population Proportion Based on Test Statistic Value and Critical Region

Bivariate and Pearson-r