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← 01-05 Expected_Friend_Type_Solution

01-05 Expected_Friend_Type_Solution

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Showing Revision 2 created 11/02/2015 by Udacity Robot.

  1. Here's the interesting finding.

  2. Because type As are so much more popular,
  3. your chances of linking to a type A is 0.8.
  4. To see, let's take the extreme view.
  5. Suppose type Bs had 0 friends.
  6. Then you'd never link to a type B.
  7. You link to type A and to type B in a proportion of 80 to 20.
  8. Type B would be 0.2.
  9. That means most of your friends you link to are type A.
  10. They're the type of people that happen to be popular.