Science & Mathematics · Statistics & probability

The hardest problem on the hardest test

16.4M views

Works through the famously hard Putnam problem about the probability that a random tetrahedron in a sphere contains its centre, by first solving the 2D version.

The medical test paradox, and redesigning Bayes' rule

Intro1.43M views

Uses the 'medical test paradox' to motivate rewriting Bayes' rule in terms of odds and Bayes factors.

Lecture 1: Probability and Counting | Statistics 110

1.81M views

Lecture 1 of Joe Blitzstein's Harvard Statistics 110: probability and counting.

But what is the Central Limit Theorem?

4.61M views

What the central limit theorem actually says, its assumptions, and why sums of random variables tend to a bell curve.

Power Calculations for difference of two means

A 11-minute statistics video from Mine Çetinkaya-Rundel covering Power calculations for a difference of means, the section of OpenIntro Statistics it is paired with.

Probability Introduction (OpenIntro textbook supplement)

A 20-minute statistics video from OpenIntroOrg covering Defining probability, the section of OpenIntro Statistics it is paired with.

Gráficas de tallo y hoja

A 6-minute statistics video from KhanAcademyEspañol covering Gráficos de tallo y hoja (gráfico de tallo), gráficos de líneas y gráficos de barras, the section of OpenStax Introductory Statistics 2e (Spanish edition) it is paired with.

Stats I lecture style: Simple random sampling + brief into to other random sampling methods

A 39-minute statistics video from jbstatistics covering Sampling principles and strategies, the section of OpenIntro Statistics it is paired with.

Introducción a los errores tipo I y tipo II | Khan Academy en Español

Intro

A 4-minute statistics video from KhanAcademyEspañol covering Resultados y errores de tipo I y II, the section of OpenStax Introductory Business Statistics 2e (Spanish edition) it is paired with.

Distribución muestral de proporciones. Parte 1 | Khan Academy en Español

A 7-minute statistics video from KhanAcademyEspañol covering Teorema del límite central de las proporciones, the section of OpenStax Introductory Business Statistics 2e (Spanish edition) it is paired with.

Valor esperado de una distribución binomial

A 17-minute statistics video from KhanAcademyEspañol covering Distribución binomial, the section of OpenStax Introductory Business Statistics 2e (Spanish edition) it is paired with.

Ejemplos para identificar errores tipo I y tipo II | Khan Academy en Español

A 7-minute statistics video from KhanAcademyEspañol covering Resultados y errores de tipo I y II, the section of OpenStax Introductory Business Statistics 2e (Spanish edition) it is paired with.

Construyendo una función de masa de probabilidad para una variable aleatoria

A 8-minute statistics video from KhanAcademyEspañol covering Función de Distribución de Probabilidad (PDF) para una variable aleatoria discreta, the section of OpenStax Introductory Statistics 2e (Spanish edition) it is paired with.

Tabla de contingencia de frecuencia relativa

A 6-minute statistics video from KhanAcademyEspañol covering Tablas de contingencia, the section of OpenStax Introductory Statistics 2e (Spanish edition) it is paired with.

Model Selection in Multiple Regression

A 4-minute statistics video from OpenIntroOrg covering Model selection, the section of OpenIntro Statistics it is paired with.

Independent Events (Basics of Probability: Independence of Two Events)

Intro

A 21-minute statistics video from jbstatistics covering Independent and Mutually Exclusive Events, the section of OpenStax Introductory Business Statistics 2e it is paired with.

Intervalo de confianza 1

A 14-minute statistics video from KhanAcademyEspañol covering La media de una población utilizando la distribución normal, the section of OpenStax Introductory Statistics 2e (Spanish edition) it is paired with.

Homogeneity and independence in two way tables

A 12-minute statistics video from Mine Çetinkaya-Rundel covering Testing for independence in two-way tables, the section of OpenIntro Statistics it is paired with.

Introduction to the Continuous Uniform Distribution

Intro

A 7-minute statistics video from jbstatistics covering The Uniform Distribution, the section of OpenStax Introductory Business Statistics 2e it is paired with.

El impacto de eliminar valores atípicos en rectas de regresión | Khan Academy en Español

A 5-minute statistics video from KhanAcademyEspañol covering Valores atípicos, the section of OpenStax Introductory Statistics 2e (Spanish edition) it is paired with.

Chi-square Tests for One-way Tables

A 9-minute statistics video from jbstatistics covering Goodness-of-Fit Test, the section of OpenStax Introductory Business Statistics 2e it is paired with.

An Introduction to the Binomial Distribution

Intro

A 14-minute statistics video from jbstatistics covering Binomial Distribution, the section of OpenStax Introductory Business Statistics 2e it is paired with.

ANOVA 2 - Calculando la SCD y la SCE (Suma Total de Cuadrados Dentro y Entre

A 13-minute statistics video from KhanAcademyEspañol covering ANOVA de una vía, the section of OpenStax Introductory Business Statistics 2e (Spanish edition) it is paired with.

Stats I lecture style: Experiments vs Observational Studies

Intro

A 38-minute statistics video from jbstatistics covering Experimental Design and Ethics, the section of OpenStax Introductory Statistics 2e it is paired with.

Stats I lecture style: Populations and samples, parameters and statistics

Intro

A 25-minute statistics video from jbstatistics covering Definitions of Statistics, Probability, and Key Terms, the section of OpenStax Statistics it is paired with.

Hypothesis Testing Fundamentals

A 8-minute statistics video from OpenIntroOrg covering Hypothesis testing for a proportion, the section of OpenIntro Statistics it is paired with.

An Introduction to Hypothesis Testing

Intro

A 10-minute statistics video from jbstatistics covering Null and Alternative Hypotheses, the section of OpenStax Introductory Business Statistics 2e it is paired with.

Analizando gráficas de dispersión

A 2-minute statistics video from KhanAcademyEspañol covering Diagramas de dispersión, the section of OpenStax Introductory Statistics 2e (Spanish edition) it is paired with.

Distribución binomial

A 16-minute statistics video from KhanAcademyEspañol covering Distribución binomial, the section of OpenStax Introductory Business Statistics 2e (Spanish edition) it is paired with.

Mediana, media y asimetría en curvas de densidad | Khan Academy en Español

A 6-minute statistics video from KhanAcademyEspañol covering Distorsión y media, mediana y moda, the section of OpenStax Introductory Business Statistics 2e (Spanish edition) it is paired with.

Foundations for Inference: Point Estimates

A 19-minute statistics video from OpenIntroOrg covering Point estimates and sampling variability, the section of OpenIntro Statistics it is paired with.

12.46 | Suppose that the half-life of steroids taken by an athlete is 42 days. Assuming that the

A 9-minute chemistry worked example from The Glaser Tutoring Company, solving exercise 12.46 of OpenStax Chemistry 2e step by step.

Measures of Variability (Variance, Standard Deviation, Range, Mean Absolute Deviation)

A 12-minute statistics video from jbstatistics covering Measures of the Spread of the Data, the section of OpenStax Introductory Business Statistics 2e it is paired with.

Introducción a la estadística media, mediana y moda

Intro

A 9-minute statistics video from KhanAcademyEspañol covering Medidas del centro de los datos, the section of OpenStax Introductory Business Statistics 2e (Spanish edition) it is paired with.

Normal Distribution (OpenIntro textbook complement)

A 20-minute statistics video from OpenIntroOrg covering Normal distribution, the section of OpenIntro Statistics it is paired with.

t Tests for One Mean: An Example

A 10-minute statistics video from jbstatistics covering Full Hypothesis Test Examples, the section of OpenStax Introductory Business Statistics 2e it is paired with.