STATS 2143

UWO

Course Overview

Lessons & Practice

I. Welcome

1 min

1. Looking at Data - Distributions

2.2hr

1.1.1. Boxplots and Five Number Summary9 min

1.1.2. Practice4 min

1.1.3. Practice

1.2.1. Histograms4 min

1.2.2. Practice2 min

1.2.3. Practice2 min

1.2.4. Practice

1.3.1. Measures of Central Tendency7 min

1.3.2. Mean and Median Example2 min

1.3.3. Practice

1.3.4. Practice2 min

1.3.5. Practice3 min

1.4.1. Skewness and Symmetry 6 min

1.4.2. Practice

1.5.1. Percentiles4 min

1.5.2. Example2 min

1.5.3. Practice

1.6.1. Range and Interquartile Range11 min

1.6.2. Variance and Standard Deviation6 min

1.6.3. Practice3 min

1.6.4. Practice3 min

1.6.5. Practice

1.7.1. Continuous Probability Distribution Theory10 min

1.8.1. Normal Distribution11 min

1.8.2. Practice5 min

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

1.9.2. Standardizing a Normal Random Variable4 min

1.9.3. Example10 min

1.9.4. Practice6 min

1.9.5. Practice3 min

2. Looking at Data - Relationships

37min

2.1.1. Scatterplots5 min

2.1.2. Practice

2.2.1. Correlation5 min

2.2.2. Practice

2.3.1. Solving for Correlation2 min

2.4.1. Coefficient of Determination (R Squared)7 min

2.4.2. Assessing Goodness of Fit6 min

2.4.3. Practice

3. Producing Data

1.1hr

3.1.1. Introduction to Statistics4 min

3.1.2. Sample vs. Population7 min

3.1.3. Practice

3.1.4. Measurement Scales7 min

3.1.5. Practice

3.2.1. Statistical Sampling28 sec

3.2.2. Convenience Sampling1 min

3.2.3. Simple Random Sampling3 min

3.2.4. Systematic Sampling2 min

3.2.5. Stratified Sampling vs. Cluster Sampling6 min

3.2.6. Two-Stage Cluster Sampling2 min

3.2.7. Practice

3.2.8. Practice

3.2.9. Practice

3.3.1. Sampling Bias7 min

3.3.2. Recipe for a Good Sample5 min

3.3.3. Practice

3.3.4. Practice

3.4.1. Observational Studies4 min

3.4.2. Experimental Studies3 min

3.4.3. Example5 min

3.4.4. Practice

3.5.1. Types of Experimental Designs7 min

3.5.2. Principles of Experimental Design4 min

3.5.3. Example

3.5.4. Practice

3.5.5. Practice

4. Probability: The Study of Randomness

4hr

4.1.1. Events & Sample Spaces6 min

4.1.2. Types of Probability6 min

4.1.3. Probability Language & Notation4 min

4.1.4. Example3 min

4.1.5. Independent vs. Mutually Exclusive Events4 min

4.1.6. Example2 min

4.1.7. Practice

4.2.1. Venn Diagrams3 min

4.2.2. Tree Diagrams4 min

4.2.3. Two-way Table5 min

4.3.1. Interpretation of Probability2 min

4.3.2. Complement Rule3 min

4.3.3. Practice1 min

4.3.4. The Addition Rule4 min

4.4.1. Probability of Independent Events4 min

4.4.2. Example3 min

4.4.3. Practice2 min

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

4.5.2. Conditional Probability: Tree Diagram5 min

4.5.3. Bayes’ Theorem4 min

4.7.1. Summary of Key Definitions6 min

4.8.1. Discrete Random Variables8 min

4.8.2. Practice

4.8.3. Probability Distribution Function4 min

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

4.9.1. Bernoulli Trials4 min

4.9.2. Practice4 min

4.9.3. Binomial Experiment4 min

4.9.4. Binomial Distribution8 min

4.10.1. Poisson Experiment5 min

4.10.2. Poisson Distribution1 min

4.10.3. Example3 min

4.10.4. Practice5 min

4.10.5. Practice5 min

4.11.1. Uniform Distribution1 min

4.11.2. Practice3 min

4.12.1. Exponential Experiment3 min

4.12.2. Exponential Distribution7 min

4.12.3. Practice7 min

5. Sampling Distributions

59min

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

6. Introduction to Inference

1.4hr

6.1.1. Introduction to Confidence Intervals14 min

6.2.1. Confidence Interval for a Mean13 min

6.2.2. Example4 min

6.2.3. Practice3 min

6.3.1. Confidence Interval for a Proportion2 min

6.3.2. Example5 min

6.3.3. Practice4 min

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

6.4.2. Confidence Interval for Two Means Containing Zero7 min

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

6.5.1. Match Pairs for Dependent Means12 min

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

6.6.2. Practice

6.7.1. Margin of Error and Sample Size3 min

6.7.2. Practice

7. Inference for Distributions

2.1hr

7.1.1. Introduction to Hypothesis Testing 15 min

7.1.2. Hypothesis Testing Steps25 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. Comparing Two Independent Means9 min

7.3.2. Hypothesis Test Steps: Comparing Two Independent Means11 min

7.4.1. Hypothesis Test for Matched Pairs11 min

7.4.2. Example7 min

7.4.3. Practice3 min

7.5.1. Type I and Type II Errors5 min

7.5.2. Type I and Type II Errors1 min

8. Inference for Proportions

1.3hr

8.1.1. Hypothesis Test for a Proportion10 min

8.1.2. Example4 min

8.1.3. Practice5 min

8.1.4. Practice9 min

8.2.1. Hypothesis Testing for Two Independent Population Proportions9 min

8.2.2. Hypothesis Test Steps: Comparing Two Independent Proportions8 min

8.2.3. Example13 min

8.2.4. Practice (Pooled)6 min

8.3.1. Confidence Interval for Differences in Population Proportions3 min

8.3.2. Confidence Interval for Two Proportions1 min

8.3.3. Example4 min

8.3.4. Practice4 min

9. Inference for Categorical Data

48min

9.1.1. Types of Chi Square Tests8 min

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

9.1.3. Example7 min

9.1.4. Pratice9 min

9.1.5. Chi-Square Test for Independence5 min

9.1.6. Example8 min

9.1.7. Practice4 min

9.1.8. More on Chi-Square Tests3 min

10. Inference for Regression

3hr

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

10.1.2. Example7 min

10.1.3. Practice (Version 1)3 min

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

10.1.5. Example5 min

10.1.6. Practice (Version 2)5 min

10.2.1. Predictions3 min

10.2.2. Residuals (Errors)5 min

10.2.3. Practice

10.2.4. Residual Plots2 min

10.2.5. Regression Diagnostics 5 min

10.2.6. Practice

10.2.7. Standard Deviation of the Residuals5 min

10.2.8. Practice

10.3.1. Estimating the Coefficients of the Linear Regression Model9 min

10.3.2. Measures of Variation in Regression9 min

10.3.3. Practice

10.4.1. Standard Error and R Square Formulas7 min

10.4.2. Example5 min

10.4.3. Practice4 min

10.5.1. Confidence Interval for Linear Regression5 min

10.5.2. Example9 min

10.5.3. Practice3 min

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

10.5.5. Practice

10.6.1. Hypothesis Testing for Linear Regression14 min

10.6.2. Example17 min

10.6.3. Example13 min

10.6.4. Practice: Linear Regression Analysis6 min

10.7.1. Prediction Interval of Y7 min

10.7.2. Example12 min

10.7.3. Practice10 min

10.7.4. Practice

11. Multiple Regression

1.7hr

11.1.1. Assessing a Multiple Regression Model5 min

11.1.2. F-test for Multiple Regression5 min

11.1.3. Solving for the F-score9 min

11.1.4. Example2 min

11.1.5. Practice8 min

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

11.2.2. Example26 min

11.2.3. Example13 min

11.2.4. Practice13 min

11.2.5. Practice12 min

12. One-Way Analysis of Variance

38min

12.1.1. One-Way ANOVA8 min

12.1.2. One-Way ANOVA Table10 min

12.1.3. Example9 min

12.1.4. Practice

12.2.1. One-Way ANOVA Hypothesis Test6 min

12.2.2. Example4 min

12.2.3. Practice

13. Two-Way Analysis of Variance

11min

13.1.1. Two-Way ANOVA with Replication Hypothesis Test5 min

13.1.2. Two-Way ANOVA with Replication Hypothesis Test6 min

Mock Exams

ME.1. Mock Exam21 Qns

ME.2. Mock Exam18 Qns

ME.3. Mock Exam27 Qns

ME.4. Test 1 - Mock Assessment24 Qns

ME.5. Test 2 - Mock Assessment38 Qns

ME.6. Final Exam - Mock Assessment19 Qns

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Answered

Anonymous

Does this cover every topic needed for the final exam? Including combination/permutation, and other small sections?

Lawron L

Instructor

Hello - combination/permutation is found under the 'Counting Rules' chapter. Thank you.

Answered

Liz F

Do you have example questions on how to calculate frequency, relative cumulative frequency, and cumulative relative frequency?

Lawron L

Instructor

Yes, please see the sectiom about Frequency Polygons. 

Notes:
Frequency = counts
Cumulative Frequency = counts accumulated from the minimum 
Relative Cumulative Frequency = % accumulated from the minimum 

Answered

sophia c

do you have a video that helps me understand z scores

Lawron L

Instructor

z scores are introduced in "Continuous Probability Distribution" > "Normal Distributions" and "Standardizing"

Answered

Anonymous

Who came with this concept? 

Jessica Y

Instructor

I don't think one specific person came up with the concept of statistic. It's a very useful branch of math, so I think people saw its application and developed different tools that help us answer important questions :)

Welcome to Wize's Statistics Course!
My name is Lawron and I'm here to help you ace your course! Feel free to go through this resource at your own pace
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