Statistics Videos

Chapter 2:  Organizing Data

  1. Organizing and Displaying Qualitative Data
  2. Organizing and Displaying Quantitative-Discrete Data
  3. Organizing and Displaying Quantitative-Continuous Data
  4. Stem-and-Leaf Plots and Dot Plots
  5. Time-Series Graphs

Chapter 3:  Averages and Variation

  1. Measures of Center
  2. Mean vs. Median Applet
  3. Measures of Variation:  Range and Standard Deviation
  4. Using the Standard Deviation to Identify Unusual Values
  5. The Empirical Rule
  6. Measures of Position:  Z-Scores
  7. Measures of Position:  Percentiles and Quartiles (also, the IQR)
  8. Identifying Outliers
  9. The Five-Number Summary and Boxplots

Chapter 5:  Elementary Probability Theory

  1. Introduction to Probability
  2. The Addition Rule
  3. The Addition Rule with Contingency Tables
  4. The Complement Rule
  5. The Multiplication Rule
  6. The Probability of “At Least One”

Chapter 6:  Discrete Probability Distributions

  1. Introduction to Discrete Random Variables and Discrete Probability Distributions
  2. The Mean, Variance, and Standard Deviation of a Discrete Probability Distribution
  3. Another Discrete Probability Distribution Example
  4. Expected Value
  5. The Binomial Probability Distribution
  6. The Binomial Probability Formula

Chapter 7:  Continuous Probability Distributions

  1. Finding Standard Normal Probabilities Using the TI-83/84 (part 1)
  2. Finding Standard Normal Probabilities Using the TI-83/84 (part 2)
  3. Finding Standard Normal Probabilities Using the TI-83/84 (part 3)
  4. Finding Z-Scores When Given Probabilities
  5. Applications of the Normal Distribution (part 1)
  6. Applications of the Normal Distribution (part 2)


Chapter 8:  Sampling Distributions

  1. The Sampling Distribution of the Sample Mean
  2. The Sampling Distribution of the Sample Mean (Part 2)
  3. The Sampling Distribution of the Sample Mean:  Examples
  4. The Sampling Distribution of the Sample Proportion
  5. The Sampling Distribution of the Sample Proportion:  Examples

Chapter 9:  Estimation:  Confidence Intervals

  1. Introduction to Confidence Intervals
  2. Introduction to Confidence Intervals:  A Simulation
  3. Calculating a Z-Interval
  4. Determining the Sample Size for Estimating a Population Mean
  5. Calculating a T-Interval
  6. Programming invT into a Ti 83 or Ti 83+ Calculator (If you don’t have invT on your calculator.)
  7. Calculating a T-Interval with Raw Data
  8. Calculating a Confidence Interval for a Population Proportion
  9. Determining the Sample Size for Estimating a Population Proportion

Chapter 10:  Hypothesis Testing

  1. Introduction to Hypothesis Testing
  2. One-Tailed Z-Test (Example 1)
  3. One-Tailed Z-Test (Example 2)
  4. Two-Tailed Z-Test
  5. One-Tailed T-Test
  6. Two-Tailed T-Test with Raw Data
  7. Two-Tailed 1-Proportion Z-Test
  8. One-Tailed 1-Proportion Z-Test

Chapter 4:  Correlation and Regression

  1. Calculating the Correlation Coefficient Using the TI-83/84
  2. Testing the Correlation Coefficient Using the TI-83/84
  3. Finding the Least-Squares Linear Regression Line Using the TI-83/84

Chapter 12:  Chi-Squared Tests

  1. Goodness-of-Fit Test
  2. Test for Independence (Part 1)
  3. Test for Independence (Part 2)