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Variance and standard deviation : Another simulation giving eviden...

By: Sal Khan

Another visualization providing evidence that dividing by n-1 truly gives an unbiased estimate of population variance.

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Sal's old statistics videos : Statistics: Sample Variance

By: Sal Khan

Using the variance of a sample to estimate the variance of a population

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Sal's old statistics videos : Statistics: Variance of a Population

By: Sal Khan

Variance of a population.

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Brain Teasers : Path Counting Brain Teaser

By: Sal Khan

Counting paths in a square

Random logic puzzles and brain teasers. Fun to do and useful for many job interviews!

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Measures of central tendency : Statistics intro: mean, median and mode

By: Sal Khan

Using the mean, median and mode to try to represent data

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Linear regression and correlation : Proof (Part 4) Minimizing Squa...

By: Sal Khan

Proof (Part 4) Minimizing Squared Error to Regression Line

Fitting a line to points. Linear regression. R-squared.

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Variance and standard deviation : Review and intuition why we divi...

By: Sal Khan

Reviewing the population mean, sample mean, population variance, sample variance and building an intuition for why we divide by n-1 for the unbiased sample variance

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Box-and-whisker plots : Constructing a box-and-whisker plot

By: Sal Khan, Monterey Institute for Technology and Education

Constructing a box and whisker plot to analyze data.

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Variance and standard deviation : Simulation showing bias in sampl...

By: Sal Khan

Simulation by Peter Collingridge giving us a better understanding of why we divide by (n-1) when calculating the unbiased sample variance.

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Box-and-whisker plots : Box-and-Whisker Plots

By: Sal Khan, Monterey Institute for Technology and Education

Box-and-Whisker Plots

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Linear regression and correlation : Squared Error of Regression Line

By: Sal Khan

Introduction to the idea that one can find a line that minimizes the squared distances to the points

Fitting a line to points. Linear regression. R-squared.

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Brain Teasers : Forehead Numbers Brain Teaser

By: Sal Khan

The perfect logicians are at it again.

Random logic puzzles and brain teasers. Fun to do and useful for many job interviews!

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Brain Teasers : Toggler Brain Teaser

By: Sal Khan

Separating the truthteller from the togglers!

Random logic puzzles and brain teasers. Fun to do and useful for many job interviews!

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Linear regression and correlation : Proof (Part 1) Minimizing Squa...

By: Sal Khan

Proof (Part 1) Minimizing Squared Error to Regression Line

Fitting a line to points. Linear regression. R-squared.

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Variance and standard deviation : Exploring Standard Deviation 1 M...

By: Sal Khan

Ben Eater and Sal Khan talk through the Khan Academy Standard Deviation 1 Module

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Brain Teasers : 3-D Path Counting Brain Teaser

By: Sal Khan

Extending the path counting to three dimensions

Random logic puzzles and brain teasers. Fun to do and useful for many job interviews!

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Linear regression and correlation : Correlation and Causality

By: Sal Khan

Understanding why correlation does not imply causality (even though many in the press and some researchers often imply otherwise)

Fitting a line to points. Linear regression. R-squared.

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Variance and standard deviation : Simulation providing evidence th...

By: Sal Khan

Simulation by KA user tetef showing that dividing by (n-1) gives us an unbiased estimate of population variance.

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Measures of central tendency : Example: Finding mean, median and mode

By: Sal Khan, Monterey Institute for Technology and Education

Mean Median and Mode

Measures of central tendency and dispersion. Mean, median, mode, variance, and standard deviation.

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Linear regression and correlation : Proof (Part 3) Minimizing Squa...

By: Sal Khan

Proof (Part 3) Minimizing Squared Error to Regression Line

Fitting a line to points. Linear regression. R-squared.

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