Statistics

Dr. E's complete statistics video library — exploring data, probability, inference, and AP Stats exam prep. Every Units 1–5 lesson paired with a free downloadable worksheet, taught in both English and Filipino 🇵🇭

9units

70lessons

EN · FILbilingual 🇵🇭

🆓always free

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Bilingual video lessons
English & Filipino

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Worksheet

Aligned practice problems
for every lesson

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Watching in: English — toggle to switch video links

9 Units · 70 Lessons

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Unit 1

Exploring Data & Study Design

All 8 lessons available

▾

Identifying Population and Sample

Unit 1 · Lesson 1

Parameters vs Statistics

Unit 1 · Lesson 2

Categorical vs Quantitative Variables

Unit 1 · Lesson 3

Discrete vs Continuous Variables

Unit 1 · Lesson 4

Sampling Techniques — Random Number Generator

Unit 1 · Lesson 5

Simple Random Sampling — Table D

Unit 1 · Lesson 6

Simulating Experiments — Random Digit Table

Unit 1 · Lesson 7

Bias, Lurking & Confounding Variables

Unit 1 · Lesson 8

Unit 2

Representing & Summarizing Data

All 9 lessons available

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Constructing Dot Plots

Unit 2 · Lesson 1

Frequency Distribution Tables & Histograms

Unit 2 · Lesson 2

Stem-and-Leaf Plots

Unit 2 · Lesson 3

Measures of Center — Mean vs Median

Unit 2 · Lesson 4

Percentile Rank from Raw Data

Unit 2 · Lesson 5

Percentile Rank & the Normal Distribution

Unit 2 · Lesson 6

Finding Area Under the Normal Curve — Z-Table

Unit 2 · Lesson 7

Quartiles and Box-and-Whisker Plots

Unit 2 · Lesson 8

Standard Deviation & Sigma Notation

Unit 2 · Lesson 9

Unit 3

The Normal Distribution

All 5 lessons available

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Z-Scores and Standard Normal Distribution

Unit 3 · Lesson 1

The Empirical Rule — 68-95-99.7

Unit 3 · Lesson 2

Normal Distribution Probability — Z-Table

Unit 3 · Lesson 3

Finding Area Under Normal Curve — Ti-84

Unit 3 · Lesson 4

Continuous Random Variables & Normal Distribution

Unit 3 · Lesson 5

Unit 4

Linear Regression & Correlation

All 8 lessons available

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Explanatory & Response Variables — Scatterplots

Unit 4 · Lesson 1

Graphing & Interpreting Scatterplots

Unit 4 · Lesson 2

Interpreting Correlation — FODS

Unit 4 · Lesson 3

Least Squares Regression Line (LSRL)

Unit 4 · Lesson 4

LSRL from Computer Output

Unit 4 · Lesson 5

LSRL Predictions — Desmos

Unit 4 · Lesson 6

Linear Transformation of Bivariate Data

Unit 4 · Lesson 7

Transforming Data to Achieve Linearity

Unit 4 · Lesson 8

Unit 5

Probability

All 10 lessons available

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Introduction to Probability — Sample Spaces

Unit 5 · Lesson 1

Probability Rules — Events

Unit 5 · Lesson 2

Classical Probability

Unit 5 · Lesson 3

Independent vs Dependent Events

Unit 5 · Lesson 4

Probability Models

Unit 5 · Lesson 5

Two-Way Tables & Venn Diagrams

Unit 5 · Lesson 6

Two-Way Tables, Venn Diagrams & Tree Diagrams

Unit 5 · Lesson 7

Conditional Probability

Unit 5 · Lesson 8

Conditional Probability — Using Tables

Unit 5 · Lesson 9

Combinations & Counting Methods

Unit 5 · Lesson 10

Unit 6

Random Variables & Distributions

All 7 lessons available

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Probability of Discrete Random Variables

Unit 6 · Lesson 1

Mean & Standard Deviation of Discrete Random Variables

Unit 6 · Lesson 2

Binomial Probability

Unit 6 · Lesson 3

Mean & Standard Deviation of Binomial Distribution

Unit 6 · Lesson 4

Geometric Distribution

Unit 6 · Lesson 5

Uniform Distribution — Continuous Random Variables

Unit 6 · Lesson 6

Sampling Distributions

Unit 6 · Lesson 7

Unit 7

Confidence Intervals

All 8 lessons available

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Introduction to Confidence Intervals

Unit 7 · Lesson 1

Computing CI for Population Mean (Z-interval)

Unit 7 · Lesson 2

CI for Population Mean — t-Distribution

Unit 7 · Lesson 3

Solving Problems — CI for Population Mean

Unit 7 · Lesson 4

Determining Sample Size for CI

Unit 7 · Lesson 5

Confidence Interval for Population Proportion

Unit 7 · Lesson 6

Solving Problems — CI for Proportion

Unit 7 · Lesson 7

Matched Pairs — Confidence Interval

Unit 7 · Lesson 8

Unit 8

Hypothesis Testing

All 9 lessons available

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Introduction to Hypothesis Testing

Unit 8 · Lesson 1

Type I and Type II Errors

Unit 8 · Lesson 2

Hypothesis Testing — One Sample Mean (Z-Test)

Unit 8 · Lesson 3

Hypothesis Testing — One Sample Proportion

Unit 8 · Lesson 4

Hypothesis Testing — Two Sample Means

Unit 8 · Lesson 5

Hypothesis Testing — Two Sample Proportions

Unit 8 · Lesson 6

Hypothesis Testing — Matched Pairs

Unit 8 · Lesson 7

Chi-Square Goodness of Fit

Unit 8 · Lesson 8

Chi-Square Test for Independence

Unit 8 · Lesson 9

Unit 9

AP Statistics Exam Prep — FRQ Practice

6 exam walkthroughs · EN AP FRQ videos · FIL toggle shows a related concept lesson

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2003 Q1 Form B — Linear Regression Problem

Unit 9 · Lesson 1

2003 Q2 Form B — Probability Problem

Unit 9 · Lesson 2

2003 Q3 Form B — Hypothesis Testing Problem

Unit 9 · Lesson 3

2003 Q4 Form B — Designing an Experiment

Unit 9 · Lesson 4

2003 Q5 Form B — Chi-Square GOF Problem

Unit 9 · Lesson 5

2004 Q1 — Hypothesis Testing Problem

Unit 9 · Lesson 6

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