STAT 255

UVIC

Course Overview

Lessons & Practice

I. Welcome

1. Introduction to Data

1.1hr

1.1.1. Introduction to Statistics4 min

1.1.2. Sample vs. Population7 min

1.1.3. Practice

1.1.4. Measurement Scales7 min

1.1.5. Practice

1.2.1. Statistical Sampling28 sec

1.2.2. Convenience Sampling1 min

1.2.3. Simple Random Sampling3 min

1.2.4. Systematic Sampling2 min

1.2.5. Stratified Sampling vs. Cluster Sampling6 min

1.2.6. Two-Stage Cluster Sampling2 min

1.2.7. Practice

1.2.8. Practice

1.2.9. Practice

1.3.1. Sampling Bias7 min

1.3.2. Recipe for a Good Sample5 min

1.3.3. Practice

1.3.4. Practice

1.4.1. Observational Studies4 min

1.4.2. Experimental Studies3 min

1.4.3. Example5 min

1.4.4. Practice

1.5.1. Types of Experimental Designs7 min

1.5.2. Principles of Experimental Design4 min

1.5.4. Practice

1.5.5. Practice

2. Summarizing Data

1.8hr

2.1.1. Measures of Central Tendency7 min

2.1.2. Mean and Median Example2 min

2.1.3. Practice

2.1.4. Practice2 min

2.1.5. Practice3 min

2.2.1. Range and Interquartile Range11 min

2.2.2. Variance and Standard Deviation6 min

2.2.3. Practice3 min

2.2.4. Practice3 min

2.2.5. Practice

2.3.1. Skewness and Symmetry 6 min

2.3.2. Practice

2.4.1. Percentiles4 min

2.4.2. Example2 min

2.4.3. Practice

2.5.1. Scatterplots5 min

2.5.2. Practice

2.6.1. Boxplots and Five Number Summary9 min

2.6.2. Practice4 min

2.6.3. Practice

2.7.1. Histograms4 min

2.7.2. Practice2 min

2.7.3. Practice2 min

2.7.4. Practice

2.8.1. Dot Plots5 min

2.8.2. Practice

2.9.1. Frequency Polygons2 min

2.9.2. Practice4 min

2.10.1. Stemplots (Stem-and-Leaf Plots)2 min

2.10.2. Practice3 min

2.11.1. Times Series Plots2 min

2.11.2. Practice2 min

2.12.1. Pie Chart3 min

2.12.2. Practice

2.13.1. Bar Chart3 min

2.13.2. Practice

2.14.1. Segmented Bar Chart (or Stacked Columns)3 min

2.14.2. Practice4 min

3. Probability

4hr

3.1.1. Events & Sample Spaces6 min

3.1.2. Types of Probability6 min

3.1.3. Probability Language & Notation4 min

3.1.4. Example3 min

3.1.5. Independent vs. Mutually Exclusive Events4 min

3.1.6. Example2 min

3.1.7. Practice

3.2.1. Venn Diagrams3 min

3.2.2. Tree Diagrams4 min

3.2.3. Two-way Table5 min

3.3.1. Interpretation of Probability2 min

3.3.2. Complement Rule3 min

3.3.3. Practice1 min

3.3.4. The Addition Rule4 min

3.4.1. Probability of Independent Events4 min

3.4.2. Example3 min

3.4.3. Practice2 min

3.5.1. Contingency Table (Two-Way Table)4 min

3.5.2. Simpson’s Paradox3 min

3.5.3. Practice

3.6.1. Probability of Dependent Events (Conditional Probability)7 min

3.6.2. Conditional Probability: Tree Diagram5 min

3.6.3. Bayes’ Theorem4 min

3.6.4. Example4 min

3.6.5. Practice3 min

3.7.1. Example6 min

3.7.2. Example7 min

3.7.3. Example7 min

3.7.4. Practice4 min

3.7.5. Practice5 min

3.8.1. Summary of Key Definitions6 min

3.9.1. Discrete Random Variables8 min

3.9.2. Practice

3.9.3. Probability Distribution Function4 min

3.9.4. Expected Value, Variance, and Standard Deviation of Discrete Random Variables6 min

3.9.5. Example5 min

3.9.6. Example4 min

3.9.7. Practice6 min

3.9.8. Practice4 min

3.9.9. Practice

3.10.1. Transforming Data: Shifting & Scaling11 min

3.10.2. Practice2 min

3.10.3. Linear Transformation3 min

3.10.4. Example4 min

3.10.5. Practice2 min

3.11.1. Cumulative Distribution Function (CDF)3 min

3.11.2. Example6 min

3.11.3. Practice2 min

3.12.1. Combining Random Variables7 min

3.12.2. Example2 min

3.12.3. Practice2 min

3.12.4. Example3 min

3.12.5. Practice

3.12.6. Functions of Two Independent Random Variables X and Y5 min

3.12.7. Example3 min

3.12.8. Practice

3.12.9. Practice2 min

3.13.1. Conditional Probability & Joint Distribution7 min

3.13.2. Example5 min

3.13.3. Practice

3.13.4. Random Variables & Joint Distribution7 min

3.13.5. Example3 min

3.13.6. Practice

3.13.7. Example

3.13.8. Practice

4. Distributions of Random Variables

2.3hr

4.1.1. Continuous Probability Distribution Theory10 min

4.2.1. Normal Distribution11 min

4.2.2. Practice5 min

4.3.1. Standard Normal Distribution (Z-Scores)11 min

4.3.2. Standardizing a Normal Random Variable4 min

4.3.3. Example10 min

4.3.4. Practice6 min

4.3.5. Practice3 min

4.4.1. Bernoulli Trials4 min

4.4.2. Practice4 min

4.4.3. Binomial Experiment4 min

4.4.4. Binomial Distribution8 min

4.4.5. Example10 min

4.4.6. Example1 min

4.4.7. Practice6 min

4.4.8. Practice

4.5.1. Normal Approximation to Binomial2 min

4.5.2. Practice5 min

4.5.3. Practice4 min

4.5.4. Practice4 min

4.6.1. Poisson Experiment5 min

4.6.2. Poisson Distribution1 min

4.6.3. Example3 min

4.6.4. Practice5 min

4.6.5. Practice5 min

4.7.1. Approximating the Binomial Distribution with Poisson2 min

4.7.2. Example6 min

4.7.3. Practice

5. Foundations for Inference

2.2hr

5.1.1. Sampling Variability & Sampling Distribution12 min

5.2.1. Central Limit Theorem 5 min

5.2.2. Sampling Distribution for a Mean2 min

5.2.3. Example9 min

5.2.4. Sampling Distribution for a Mean Question5 min

5.3.1. Sampling Distribution of Proportions5 min

5.3.2. Example3 min

5.3.3. Practice4 min

5.4.1. Drawing Samples From a Finite Population8 min

5.4.2. Example4 min

5.4.3. Practice3 min

5.5.1. Introduction to Confidence Intervals14 min

5.6.1. Margin of Error and Sample Size3 min

5.6.2. Practice

5.7.1. Introduction to Hypothesis Testing 15 min

5.7.2. Hypothesis Testing Steps25 min

5.8.1. Type I and Type II Errors5 min

5.8.2. Type I and Type II Errors1 min

5.8.3. Practice

5.8.4. Practice

5.8.5. Power7 min

5.8.6. Practice

6. Inference for Categorical Data

2.3hr

6.1.1. Confidence Interval for a Proportion2 min

6.1.2. Example5 min

6.1.3. Practice4 min

6.2.1. Hypothesis Test for a Proportion10 min

6.2.2. Example4 min

6.2.3. Practice5 min

6.2.4. Practice9 min

6.3.1. Confidence Interval for Differences in Population Proportions3 min

6.3.2. Confidence Interval for Two Proportions1 min

6.3.3. Example4 min

6.3.4. Practice4 min

6.4.1. Hypothesis Testing for Two Independent Population Proportions9 min

6.4.2. Hypothesis Test Steps: Comparing Two Independent Proportions8 min

6.4.3. Example13 min

6.4.4. Practice (Pooled)6 min

6.5.1. Types of Chi Square Tests8 min

6.5.2. Chi-Square Test for "Goodness of Fit"4 min

6.5.3. Example7 min

6.5.4. Pratice9 min

6.5.5. Chi-Square Test for Independence5 min

6.5.6. Example8 min

6.5.7. Practice4 min

6.5.8. More on Chi-Square Tests3 min

7. Inference for Numerical Data

4hr

7.1.1. Confidence Interval for a Mean13 min

7.1.2. Example4 min

7.1.3. Practice3 min

7.2.1. Hypothesis Test for a Mean3 min

7.2.2. Example16 min

7.2.3. Example8 min

7.2.4. Practice4 min

7.3.1. Match Pairs for Dependent Means12 min

7.4.1. Matched Pairs Confidence Interval for Differences in Two Dependent Population Means4 min

7.4.2. Practice

7.5.1. Hypothesis Test for Matched Pairs11 min

7.5.2. Example7 min

7.5.3. Practice3 min

7.6.1. Confidence Interval for Differences in Population Means (Pooled and Unpooled)6 min

7.6.2. Confidence Interval for Two Means Containing Zero7 min

7.6.3. Confidence Interval for Two Means (Independent Populations)9 min

7.7.1. Confidence Interval Unpooled t2 min

7.7.2. Example: Confidence Interval (Unpooled)5 min

7.7.3. Practice (Unpooled)

7.8.1. Confidence Interval Pooled t2 min

7.8.2. Example: Confidence Interval w/ Pooled T-test5 min

7.8.3. Practice (Pooled)

7.9.1. Comparing Two Independent Means9 min

7.9.2. Hypothesis Test Steps: Comparing Two Independent Means11 min

7.10.1. Unpooled t-test (Unequal Variances)4 min

7.10.2. Example (Unpooled)11 min

7.10.3. Practice (Unpooled)5 min

7.11.1. Pooled t-test (Equal Variances)3 min

7.11.2. Example (Pooled)7 min

7.11.3. Practice (Pooled)7 min

7.12.1. One-Way ANOVA8 min

7.12.2. One-Way ANOVA Table10 min

7.12.3. Example9 min

7.12.4. Practice

7.13.1. One-Way ANOVA Hypothesis Test6 min

7.13.2. Example4 min

7.13.3. Practice

8. Introduction to Linear Regression

4hr

8.1.1. Correlation5 min

8.1.2. Practice

8.2.1. Solving for Correlation2 min

8.2.2. Example6 min

8.2.3. Practice4 min

8.2.4. Example3 min

8.2.5. Practice

8.3.1. Coefficient of Determination (R Squared)7 min

8.3.2. Assessing Goodness of Fit6 min

8.3.3. Practice

8.4.1. Solving for the Regression Line (r, Sy, Sx Method)5 min

8.4.2. Example7 min

8.4.3. Practice (Version 1)3 min

8.4.4. Solving for the Regression Line (Least Squares Method)2 min

8.4.5. Example5 min

8.4.6. Practice (Version 2)5 min

8.5.1. Predictions3 min

8.5.2. Residuals (Errors)5 min

8.5.3. Practice

8.5.4. Residual Plots2 min

8.5.5. Regression Diagnostics 5 min

8.5.6. Practice

8.5.7. Standard Deviation of the Residuals5 min

8.5.8. Practice

8.6.1. Estimating the Coefficients of the Linear Regression Model9 min

8.6.2. Measures of Variation in Regression9 min

8.6.3. Practice

8.7.1. Standard Error and R Square Formulas7 min

8.7.2. Example5 min

8.7.3. Practice4 min

8.8.1. Confidence Interval for Linear Regression5 min

8.8.2. Example9 min

8.8.3. Practice3 min

8.8.4. Slope: The Significance of "Zero" (or Lack Thereof)6 min

8.8.5. Practice

8.9.1. Hypothesis Testing for Linear Regression14 min

8.9.2. Example17 min

8.9.3. Example13 min

8.9.4. Practice: Linear Regression Analysis6 min

8.10.1. Prediction Interval of Y7 min

8.10.2. Example12 min

8.10.3. Practice10 min

8.10.4. Practice

9. Multiple Regression

1.7hr

9.1.1. Assessing a Multiple Regression Model5 min

9.1.2. F-test for Multiple Regression5 min

9.1.3. Solving for the F-score9 min

9.1.4. Example2 min

9.1.5. Practice8 min

9.2.1. Hypothesis Testing for Multiple Regression (F-test)7 min

9.2.2. Example26 min

9.2.3. Example13 min

9.2.4. Practice13 min

9.2.5. Practice12 min

Mock Exams

ME.1. Mock Exam21 Qns

ME.2. Mock Exam18 Qns

ME.3. Mock Exam27 Qns

ME.4. Test 1 - Mock Assessment26 Qns

ME.5. Test 2 - Mock Assessment28 Qns

ME.6. Final Exam - Mock Assessment18 Qns

ME.7. Test 3 - Mock Assessment37 Qns

ME.3 Mock Exam

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