The World Cup birthday paradox

  If you are in a room with 22 other people there is a slightly greater than 50% chance that at least 2 of you will share the same birthday.   Do you doubt that?   It would be natural if you did.  It’s counter-intuitive.   However, stay with me a little as I explain [...]

  A few years ago I was in BNI – a referral-based networking group.  At every meeting you did a pitch to the members in the room – and indirectly to their networks.   One week I asked the people in the room to raise their hands if they felt they were delivering excellent customer [...]