# Proof 2=1

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## Proof 2=1

 Xmas draws nearer!For  young statisticians...some festive funProof that  2 = 1a = ba2 = a.ba2 + a2 = a.b + a22a2 = a.b + a22a2 – 2ab = a.b + a2 – 2ab2a2 – 2ab = a2 – a.b2(a2 – a.b) = a2 – a.bDividing through by (a2 – a.b) gives 2=1Q.E.D.Martin P. Holt ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD
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## Re: Proof 2=1

 But you are dividing by zero which is a no no when you divided by (a2 – a.b) since a = b     Mathew Chandler Computing Consultant-BSS I.T. Services University of Windsor Windsor, Ontario, Canada N9B 3P4 (519) 253-3000 ext. 2768 [hidden email]   "Beware of false knowledge; it is more dangerous than ignorance." George Bernard Shaw     From: SPSSX(r) Discussion [[hidden email]] On Behalf Of Martin Holt Sent: December 11, 2018 11:54 AM To: [hidden email] Subject: Proof 2=1    Xmas draws nearer!     For  young statisticians...some festive fun Proof that  2 = 1 a = b a2 = a.b a2 + a2 = a.b + a2 2a2 = a.b + a2 2a2 – 2ab = a.b + a2 – 2ab 2a2 – 2ab = a2 – a.b 2(a2 – a.b) = a2 – a.b Dividing through by (a2 – a.b) gives 2=1 Q.E.D.   Martin P. Holt ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD
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## Re: Proof 2=1

 In reply to this post by Martin Holt-3 This is a somewhat old chestnut, so let me provide a novel conundrum.Consider:A person reports the result of a correlational analysis and only reportsthe valuw od r^2.  There are no scaterplots, no raw data, nthing exceptthe "effect size" measure r^2.Question:  What is the value of the Pearson r?A better question is "how values of Pearson r are there and how do you choose which one to use if no additional info is provided?" ;-)-Mike PalijNew York University[hidden email]P.S.  I'm getting well again.On Tue, Dec 11, 2018 at 11:54 AM Martin Holt <[hidden email]> wrote: Xmas draws nearer!For  young statisticians...some festive funProof that  2 = 1a = ba2 = a.ba2 + a2 = a.b + a22a2 = a.b + a22a2 – 2ab = a.b + a2 – 2ab2a2 – 2ab = a2 – a.b2(a2 – a.b) = a2 – a.bDividing through by (a2 – a.b) gives 2=1Q.E.D.Martin P. Holt ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD
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## Re: Proof 2=1

 In reply to this post by Mathew Chandler-2 Spot on, Mathew!Martin P. Holt Freelance Medical StatisticianIf you can't explain it simply, you don't understand it well enough.....EinsteinConcise Encyclopedia of Biostatistics for Medical Professionals  Martin P. Holthttps://www.crcpress.com/Concise-Encyclopedia-of-Biostatistics-for-Medical-Professionals/Indrayan-Holt/9781482243871Linked In: https://www.linkedin.com/in/martin-holt-3b800b48?trk=nav_responsive_tab_profile From: Mathew Chandler <[hidden email]> To: [hidden email] Sent: Tuesday, 11 December 2018, 22:23 Subject: Re: Proof 2=1 But you are dividing by zero which is a no no when you divided by (a2 – a.b) since a = b     Mathew Chandler Computing Consultant-BSS I.T. Services University of Windsor Windsor, Ontario, Canada N9B 3P4 (519) 253-3000 ext. 2768 [hidden email]   "Beware of false knowledge; it is more dangerous than ignorance." George Bernard Shaw     From: SPSSX(r) Discussion [[hidden email]] On Behalf Of Martin Holt Sent: December 11, 2018 11:54 AM To: [hidden email] Subject: Proof 2=1    Xmas draws nearer!     For  young statisticians...some festive fun Proof that  2 = 1 a = b a2 = a.b a2 + a2 = a.b + a2 2a2 = a.b + a2 2a2 – 2ab = a.b + a2 – 2ab 2a2 – 2ab = a2 – a.b 2(a2 – a.b) = a2 – a.b Dividing through by (a2 – a.b) gives 2=1 Q.E.D.   Martin P. Holt ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD