Proof of the Binomial Distribution Factorial Formula
Channel: MrNichollTV
Date: 2012-09-16

Watch more tutorials in my Edexcel S2 playlist: http://goo.gl/gt1up

This is the fifth in a sequence of tutorials about the binomial distribution. I explain why the number of ways to achieve r successes in a sequence of n trials is n!/r!(n-r)!

Tutorials on the binomial distribution

Introduction: http://www.youtube.com/watch?v=pgOfEsAhnlk
Probability Tables: http://www.youtube.com/watch?v=OMTExZ6PHXs
Mean & Variance: http://www.youtube.com/watch?v=w0slV8IJGKI
Criteria for Using the Binomial Distribution: http://www.youtube.com/watch?v=WPY979ALv94
Proof of the Factorial Formula: http://www.youtube.com/watch?v=Rzac520CESc
Past Paper Questions: http://www.youtube.com/watch?v=cw7ZTEDSdcI
Poisson Approximation to the Binomial: http://www.youtube.com/watch?v=goem9e6jOn4
Normal Approximation to the Binomial: http://www.youtube.com/watch?v=gOgv6_S9S7o
Hypothesis Testing: http://www.youtube.com/watch?v=Dzcaons_nfw

Watch more tutorials in my Edexcel S2 playlist: http://goo.gl/gt1up

Visit my channel for other maths videos: http://www.youtube.com/MrNichollTV

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